Tools/Maintenance

Rock-N-Roll Absolute Dry lubricant is a super-clean chain lube that picks up little or no dirt. - For road bikes only

Park's Mini Chain Brute Chain Tool goes anywhere and features a V-shaped handle, a super-strong replaceable pin, and fine threads to make chain removal and installation a breeze. The CT-5 works on any derailleur chain, including Shimano Hyperglide and 9-, 10-, and 11-speed. It works for loosening tight links, too.

Park's Home Mechanic Pedal Wrench is great for your home workshop and event tool box. This top-quality 15mm pedal wrench provides the leverage you need to remove stubborn pedals. It's made to last from heat-treated steel, and the handle has a vinyl grip for comfort.

The new 8-Bit System is a group of multi-tools designed to work together to solve most trailside fixes. They are lightweight, strong, versatile, and small enough to fit in a jersey pocket or riding tool wrap. Three multi-tools begin the 8-Bit System: 8-Bit Chainbreaker + Utility Knife Multi-Tool, 8-Bit Tire Lever + Rim Dent Remover Multi-Tool, and 8-Bit Pack Pliers. A total of 22 functions between the three tools will keep you rolling to the next town or trailhead. - 17 functions: spoke wrench; valve core wrench; flat head #3.5 and Phillips #2 screwdriver bits; 2, 2.5, 3, 4, 5, 6, and 8mm hex; and T10, T25 Torx-compatible bits; install and remove master links; clear tire sealant clogs from valve stem; tighten valve stem lock nut - Magnets keep all bits in place - Ball detent swivel head helps access hard-to-reach places - Handle doubles as breaker bar for extra torque when head is bent - 8mm hex bit tested to over 40 Nm torque - Pliers works with 9-, 10-, 11- and 12-speed master links and chains (not compatible with Campagnolo 12-speed chains) - Master Link storage is compatible with SRAM PowerLock Link, Shimano Quick-Link, KMC Missing Link and other similar master links (not compatible with Connex Links by Wipperman)

Park's Gear Clean Brush has a handle on one end with a curved, serrated edge perfect for cleaning between cassette cogs. The other end's tough nylon bristles are ideal for cleaning the derailleurs, chain and other drivetrain parts to keep them clean and prevent premature wear. It also works great on brakes and other components that collect dirt and grime. The GearClean easily fits in a toolbox or pack.

Finish Line's Pro Chain Cleaner Rebuild Kit contains all the parts you need to bring your Pro Chain Cleaner (sold separately) back to like-new condition. This kit includes three new brush wheels, new axles, and two new scrubber pads.

Park's Heavy-Duty Tire Levers handle the toughest tire-and-rim combinations including difficult downhill and freestyle tires. Their specially designed tips engage the tire bead so it can be removed with just two levers. Plus, these beefy, forged-steel levers are a full 8-inches long for superior leverage.

- Designed for precise torque and to prevent carbon fiber component damage - 1/4" drive torque wrench with chromoly ratchet head - Chrome plated chrome vanadium Hex and Torx bits (Hex: 2,2.5,3,4,5,6mm Torx: T10,T25,T30) - 100mm extension bar included

A great way to hold small parts, tools and components during a repair, Park Tool's Benchtop Overhaul Mat features multiple small pockets and one large work area. It's perfect for suspension work or to organize parts for installation. • Made of a rubber-like PVC • Cleans easily and looks great on any bench • Measures: 14.7” x 7” (38cm x 18cm)

Park's Valve Core Tool is great for tightening, removing and installing Schrader and Presta valve cores (the cores are inside the valve), and also Presta valve extenders that have 5mm wrench flats. It's a handy tool to save a tube when all that's wrong is a broken valve, and it also lets you remove valves to easily insert sealant.

Park's I-Beam Mini Fold-Up Hex Wrench/Screwdriver/Torx Set with Chain Tool includes 1.5, 2, 2.5, 3, 4, 5, and 6mm Allen wrenches, a socket 8mm Allen, a regular screwdriver, a T25 Torx tool (for disc-rotor bolts), a tire lever, spoke wrenches and a chain tool. The I-Beam conveniently fits in pockets and packs, too.

A puncture in your tubeless tire doesn't have to be a death sentence for your ride. This handy carry-along tool repairs small punctures and cuts in tubeless bicycle tires without removing the tire from the rim, getting you back on the trail in no time. The TPT-1 easily plugs the hole by inserting one of the 5 included vulcanized rubber plugs into the puncture. This shrinks the puncture down to a manageable size, allowing the tubeless sealant to do its job and reestablish a seal. The unique sliding plug retainer holds the plug in place and prevents it from being pulled back out as the tool is removed. Everything is stored in a compact package that fits easily in a saddlebag or backpack pocket. - Includes 5 vulcanized rubber plugs (refills available — part #2370K) - Dimensions: 89 x 27 x 40 mm (3.5" x 1.1" x 1.6") - Weight: 79 grams (2.8 oz.) with plugs NOTE: Intended for tubeless bicycle tires using sealant only. Not compatible with inner tube systems.

REAR SHOCK SERVICE KIT - FULL SERVICE MONARCH 3 RT3 (2013)

200 Hour/1 Year Service Kit (Includes Dust Seals, Foam Rings, O-Ring Seals, Damper Sealhead, Air Spring Sealhead) - Boxxer RC2 C1 (2019)

T-handle screwdriver: The ideal handle shape to allow high torque transmission in difficult tightening and loosening situations. The ergonomic shape of the handle fills the palm of the hand well, the fingers lie safely in the soft rounded handle recesses. The whole hand makes contact with the handle and friction losses between the hand and the handle are avoided. Special surface treatment of the blades for high corrosion protection and an optimum fit in the screw head. - T-handle screwdriver for the transmission of particularly high tightening and loosening moments - Ergonomic 2-component handle with finger handle recesses and pleasant surface feel for very high power transmission and fatigue-free working. - With Rapidaptor technology for lightning-fast bit changes - Bitholders, magnetic, for easier application of the screw

3/8" drive Zyklop bit sockets. - Bit sockets with retaining function for hexagon socket screws - The holding function holds screws securely on the tool - Take-it-easy tool finder: color coding by size - Knurling on lower end for more grip when used manually - Chrome vanadium steel, matte chrome-plated - 1x 8740 B HF 1 Zyklop bit socket set with holding function - 3/8" drive, 7 pieces - 7x 8740 B HF Zyklop bit socket with holding function, 3/8" drive: 4.0x107.0, 5.0x107.0, 6.0x107.0, 7.0x100.0, 8.0x100.0, 9.0x100.0, 10.0x100.0 - 1x Hook-and-Loop Fastener Strip 120, 70 x 50mm

Application-specific mixture of workshop screwdrivers with normal long blade and especially small Stubby screwdrivers with short blade for hard-to-reach areas. The 2-component Kraftform handle with its practical combination of hard and soft zones allows for a firm grip and precise working. The blades have all the benefits of the Wera Bit technology. Special surface treatment of the blades for high corrosion protection and an optimum fit in the screw head. The hexagon anti-roll protection prevents annoying rolling away of bits in the workplace. - Short compact Stubby screwdriver for working in confined spaces - Laser-tip screwdriver with long blade - Ergonomic 2-component Kraftform handle for precise work - Hexagonal anti-roll feature against rolling away - Take-it-easy tool finder: color coding according to profile and size

Smart Design - Interlock the levers to create a MissingLink opener. Remove single to 12-speed MissingLinks with ease. Ergonomic - Accurate and comfortable design allows you to quickly insert the opener into the chain for MissingLink removal. Durable Flexibility - Made using Swiss polymers specially formulated for the perfect balance of rigidity and flexibility. Semi-gloss finish helps prevent scratches on your bike. Multi-Functional - Separated, the MissingLink Opener becomes easy-to-use tire levers and a deflating tool. Super-Portable - Stackable. Saves space.

- New high-pressure turbo spray - Easily cuts through tough grease in seconds - No rinse, heavy duty formula - Can be used on chains, gears and individual components - Works on tough waterproof grease and chain wax

A proprietary ceramic formulation containing integral Boron Nitride compounds for low friction in wet and harsh conditions. Formulated with unique eBike specific lubricity pack to handle the higher-torque loads of an eBike drivetrain. Ideal for: Chains, cables, shifters, derailleurs & pedals. - Specifically designed for the hi-torque loads applied to an eBike chain - Creates a ceramic coating for incredible durability and long-distance performance - Contains Boron Nitride compounds - Ceramic compounds provide ultra-low friction for excellent efficiency - Waterproof - excels in wet conditions - Readily biodegradable - Ideal for road and off-road - Integral UV tracer dye - aids a

Eyelet Bushing Tool

Performing the right maintenance on your SRAM and RockShox products not only ensures years of worry-free riding, but will also keep performance optimal and enhance your experience on the bike. Each service interval indicates the maximum number of riding hours designated for each type of recommended maintenance. Depending on the terrain and environmental conditions in your location, your riding style, and skill level, you may see more optimum performance if you service your SRAM and RockShox products at shorter intervals.

200 HOUR/1 YEAR SERVICE KIT (INCLUDES DUST SEALS, FOAM RINGS, O-RING SEALS, CHRC DAMPER SEALHEAD, DEBONAIR (SILVER) SEALHEAD - ZEB R/SELECT A1 (2021)

The Muc-Off Ultimate Bicycle Cleaning Kit covers all the bases when it comes to cleaning, protecting and lubing your bike. This kit isn't style specific either with all the essentials for Road, Cyclocross, MTB and the daily commute. Complete with our award winning Bike Cleaner, Microcell Sponge, Soft Washing Brush, Detailing Brush, Two Prong Brush, Microfibre Cloth, Drivetrain Cleaner, Bike Spray and Bio Wet Lube, this kit is the perfect Birthday or Christmas gift for any bike fanatic! NB: To maintain performance of all brushes avoid use with boiling water and on hot parts. We recommend using warm water and allowing all hot parts to cool before use. - Nano Tech Bike Cleaner for quick, easy cleaning - Bio Drivetrain Cleaner for fast, effective drive chain degreasing - Assorted Muc-Off brushes and sponge for deep cleaning - Bike Spray for ultimate, post-wash protection - Tool Box included for convenient storage - Bio Wet Lube included for incredible drive chain efficiency - Includes Premium Microfiber Cloth for easy drying - Perfect gift for any bike lover

- Creates a ceramic coating for incredible durability and long distance performance - Provides ultra low friction for ultimate drivetrain efficiency - Waterproof qualities excelling in wet conditions - 95% biodegradable

The new B-gap adjustment tool is simple and easy to use, allowing for a quick set up experience. Small enough to be able to pack in your ride bag or stash in your toolbox for repeated use, it is also industrially recyclable if you find you no longer have use for it. This is the most precise tool for setting up and adjusting your drivetrain.

A part-time universal gear integrated in the handle of the screwdriver significantly increases the working speed. The turbo function can either be switched on or off by pressing a button. Turning it off is recommended for fine adjustment and final tightening or loosening of a high torque screw. The robust steel design is maintenance-free and ensures a long product life. Thanks to the Rapidaptor bit holder, the Kraftform Turbo can be used with all conventional 1/4" hexagon bits for a wide variety of screw profiles. With the Rapidaptor function the bits can be inserted directly and can be easily removed by pushing the sleeve forward—allowing single-hand operation. - Quadruples the screwdriving speed in a purely mechanical way (without battery) - Activation and deactivation of the turbo function by a simple push of a button - The fixable universal gear allows powerful screwdriving and easy fine adjustments - Robust, maintenance-free gear made of steel (maximum torque 14 Nm) - 1/4" hexagon take-up with Rapidaptor quick-release chuck

Shock Oil is a semi-synthetic formulation that combines the best of available oils and additives for a super suspension oil. It's fully compatible with all systems and internal components, seals and O-rings. Its viscosity stays constant as the temperature changes, so your shock feels the same whether you're roasting or freezing!

Finish Line's E-Shift Groupset Cleaner is specially formulated to keep your sensitive and expensive electronic drivetrain clean and safe. It quickly and safely removes grit, grime and moisture from electric shifting drivetrain components, including the front and rear derailleur, derailleur pulleys, chain, cassette and even the crankset. E-Shift is safe and will not harm the wires or electronics. Plus, it dries in minutes leaving the drivetrain parts clean, and with no rinsing required.

Wheels Manufacturing Sealed Bearing Extractor - 10mm Fits the following bearings: - 6704 - 6804 - 6904

Wheels Manufacturing Over Axle Adapters are used for pressing your most commonly used bearing sizes into place. Each represents an excellent addition to the Press-4 Bearing Press. - Adapters sold individually

- Includes everything for a quick fix while on or off-road - Liv seat bag - 12 glueless patches - 2 tire levers - Mini pump - 9 function multi-tool

Introducing the first everyday carry, ride-ready tool kit from Feedback Sports. Featuring a compact, modular ratcheting handle, 25mm extension socket, 5Nm click-torque extension socket, and ten of the most commonly used bits, this mini ratcheting wrench kit is made for making safe and secure mid-ride repairs. The included padded case is ideal for carrying in a jersey pocket, travel kit, or keeping with you at all times, for any occasion. Features: - Kit includes ratchet handle, 25mm extension, 5Nm click-torque extension, and 10 bits. - Ratchet wrench for speed; torque extension for precision. - Portable and light – easily fits in a jersey pocket, ride pack or travel kit. - 5Nm click-torque extension for safe, precise, and secure tightening of sensitive parts. - 2-way ratchet wrench can be used without torque extension for rapid fastener take-up and loosening. - Bit extender can be used in "T" handle, "L" handle, or "I" handle (in-line) configuration to suit any task. - 6-degree ratchet engagement maneuvers in tight spaces. - Compact head and bit design allows clearance and full function in tight spaces. - 10 labeled S2 Steel bits covering the most common bicycle applications. - S2 Steel is an industry-leading tool steel made for precise edges, exact fitment, and durable working surfaces. - Hex: 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm; Torx®: T10 , T25, T30; Flat: 3mm.

Our first multi-tool includes all the key bits to assemble and disassemble your bike on-the-go. Includes a 15mm and 17mm swappable pedal wrench, 4, 5, 6 and 8mm hex wrenches and a 17mm socket with an integrated storage compartment. The Travel Tool is light and easy to carry, but big enough to allow you to actually tighten everything down properly. Features: - 4mm, 5mm, 6mm, and 8mm hex wrenches - 17mm deep socket - Integrated storage compartment - Pedal Wrench (15mm and 17mm spanners included) - 8-inch Full length arm for proper leverage

Having trouble getting at internal spoke nipples? Park's Square Socket Internal Nipple Spoke Wrench comes to your rescue. The extra-long socket fits recessed nipples on most deep-section aero wheels. And, the ergonomic handle is comfortable even after you've built wheels for the entire team.

The MTC-20 features a super strong, composite, multi-position handle, with hardened and plated tools and smooth ergonomic operation. Lightweight, compact, and perfect to carry along. - 3, 4, 5 and 8mm hex wrenches - T25 Torx compatible driver - Combo cross/straight tip screwdriver - CO2 cartridge inflator adaptor - Key ring holder - Weight: 74g (2.61 ounces)

Park's Spoke Wrench For Shimano Wheel Systems is the right tool for the job. It's made of durable tool steel and features 4.4mm and 3.75mm openings to fit all Shimano Wheel System nipples located at the hub and at the rim. It's vinyl-coated for a great grip, too.

Fills gaps and helps retain non-threaded parts like Press-fit bottom bracket parts, sealed bearings etc. Notice: Park Tool AP-1 Adhesive Primer must be used to prep all components, fasteners and carbon fiber surfaces prior to application of Park Tool threadlockers or retaining compound. Failure to do so could result in permanently bonded parts.

Park Tool's SW-11 is a forged, double-ended spoke wrench designed to fit select Campagnolo wheels. Precision machined, plated and vinyl dipped for comfort and long life. It fits Campagnolo 5.5mm and 6.0mm hex spoke nipples.

The MT-10, 20, 30 and 40 are high quality folding take-along tools that feature forged aluminum side plates, a mix of hardened and plated tools, and smooth ergonomic operation.

The 2197 is an add-on accessory for the Park Tool DT-5 and DT-5.2 Disc Brake Mount Facing Set to enable easier and more efficient facing of disc brake mounts on carbon fiber frames. Features a brazed-on diamond grit surface that is over 100 times more durable and effective on carbon fiber than the cutter included with the DT-5.2. The 2197 sits between the cutter of the DT-5.2 and the brake mount, and smoothly and evenly grinds the mounting surface until it is flat and properly perpendicular to the rotor. NOTE: The 2197 is intended for facing carbon fiber only. Aluminum, steel, and titanium disc brake mounts should be faced using the #2171 facing cutter included with the DT-5.2. For carbon frames that feature aluminum inserts (with a carbon/aluminum hybrid mounting surface), use the #2197. When machining carbon fiber, regularly apply water (or a similar solution) to the cutting surface.

Upgrades the DT-5 to the DT-5.2. - Four telescoping axle adaptors - Two stand off studs for Flat Mount alignment - 12mm front fork thru axle sleeve

Dial Indicator Set bolts directly to the DT-3 allowing for greater accuracy and a way to measure results. Now includes an elongated, cylindrical tip that is large enough to work around voids in most rotors.

Professional quality T-Handle hex wrench built for speed, efficiency, leverage and a perfect fit. - Carefully selected combination of Chrome Vanadium and S-2 tool steels - Unique anodized aluminum Speed Spinner makes running long bolts in and out quick and effortless - Machined, chamfered tips allow easier insertion into hex fittings - Integrated “Strip-Gripper” twisted hex that makes removal of most bolts with stripped or oversized hexes fast and easy - Sliding T-handle creates increased leverage and multiple access positions

Park Tool's Frame and Fork Straightener is a versatile and productive tool. Its open hook design enables it to straighten not only frames and forks, but also cranks and handlebars and it features vinyl coating on the hook and fulcrum pad to protect painted surfaces. The FFS-2's hook offers 8 inches of fore-aft adjustment and can fit a frame or fork tube of up to 1-3/4 inches in diameter.

The TWB-36 is a crow foot style wrench used with any 3/8-inch drive torque wrench and drive tools with 36mm wrench flats such as Park Tool LRT-2, LRT-3, LRT-4 and BBT-18 to verify components are torqued to the correct specification. Constructed from heat-treated 4130 laser-cut steel and plated for long life.

Disc brake rotors should be regularly checked for wear to ensure safety and performance. The DCA-1 installs onto most digital, dial, or vernier calipers (including the Park Tool DC-1) and features protruding contact points that allow measurement of the center of the braking surface, bypassing the unworn edge to ensure an accurate measurement. The conical end points of the DCA-1 can be used to measure center-to-center distances of bolt holes for calculating bolt circle diameter (BCD) of chainrings and cranks. - Compatible with most standard vernier, dial, and digital caliper designs

Shimano Hydraulic Disc Brake Fluid - Non-corrosive mineral oil that offers excellent heat expansion properties - Mineral oil will not absorb water from the air - Not caustic and is non-toxic

T-handle screwdriver: The ideal handle shape to allow high torque transmission in difficult tightening and loosening situations. The ergonomic shape of the handle fills the palm of the hand well, the fingers lie safely in the soft rounded handle recesses. The whole hand makes contact with the handle and friction losses between the hand and the handle are avoided. Special surface treatment of the blades provides high corrosion protection and an optimum fit in the screw head. - T-handle screwdriver for the transmission of particularly high tightening and loosening moments - Ergonomic 2-component handle with finger handle recesses and pleasant surface feel for very high power transmission and fatigue-free working. - "Take-it-easy" tool finder: color coding according to profile and size - With additional short arm for the transmission of extremely high torques due to the leverage of the long arm - Holding function (HF) securely holds the hexagon socket screw on the tool

High-quality L-key set out of stainless steel for hexagon socket screws by Wera. The Hex-Plus profile offers a greater contact surface in the head of the screw; the notching effect is therefore reduced to a minimum and damage to the screw head is more or less eliminated. Comes with hex ballpoint on the long arm: the ballpoint drive profile means that it is possible to swivel the tool axis away from the screwdriving axis, thus enabling "round the corner" screwdriving. - Stainless steel prevents the transfer of extraneous rust: fasten stainless screws with stainless tools - Hex-Plus allows socket head screws to live longer - With Take-it-easy tool finder: color coding by size - Wear-resistant clip material for enhanced durability - Color-coded, easy-to-grip plastic sleeve, even at low temperatures - Comes in an almost wear-free L-key clip fastener

High-quality Kraftform Plus screwdriver. The ballpoint drive profile means that it is possible to swivel the tool axis away from the screwdriving axis, thus enabling "round the corner" screwdriving. The hexagonal anti-roll feature prevents any bothersome rolling away at the workplace. - Kraftform Plus: hard gripping zones for high working speeds, while soft zones ensure high torque transfer - Hexagonal ball point screwdriver - Multi-component Kraftform handle for fast and ergonomic screwdriving - "Take-it-easy" tool finder: color coding according to profile and size - Hexagonal blade and ballpoint for secure working even in difficult installation situations - The Wera Black Point tip offers an exact fit and optimum corrosion protection

L-keys made from circular material with plastic sleeve for use on bicycles. The plastic sleeve makes working comfortable even at low temperatures and is easy on the fingers. All L-keys are easily accessible due to their color coding and size markings. For hexagonal socket screws and Torx screws. In a robust and lightweight folding pouch. - L-key set for hexagonal socket screws and Torx screws - L-keys with Hex-Plus advantage for a longer screw life - L-keys are easy to find thanks to their wear-resistant size markings - In a practical, lightweight folding pouch for easy carrying

Wera offers the Bicycle Set 1, an assortment of tools that is very mobile thanks to its compact and design-oriented textile folding bag, and offers solutions for the most common screwdriving situations when working with bicycles. The sturdy bag contains the bit ratchet Zyklop Mini 1 and 10 bits with all the benefits of Wera-Bit technology, specially adapted to the most common screw connections on a bicycle. - Compact 12-piece wrench set for bicycle applications, also for mobile use - Practical range for DIY assembly work and repairs - Suitable tools for the most common bolt profiles on road bikes, mountain bikes and e-bikes - Robust, surface-friendly, compact textile folding bag - Set includes bit ratchet Zyklop Mini 1 and extension

- Specialty high performance assembly grease that excels in a multitude of heavy duty and light duty applications - Delivers unmatched thermal stability and extreme pressure performance - Oil-soluble formulation provides exceptional protection against corrosion, water washout and wear.

Park Tool's CTP-4K includes four replacement chain tool pins and one 5/32" ball bearing. To replace the chain tool pin, unscrew the cap, and pull out the old pin. Use care not to lose the ball bearing beneath the pin. Install the new pin and replace the cap. Works with the CT-4.3, CT-4.2, CT-4, and CT-11

Y-Style Hex Wrench - Perfect for common hex hardware found on modern bicycles and components. - New improved ergonomic Y-style handle design. - Features refined body shape, quick-spin bit sleeves, longer bits, and bit-size indication. - Designed to stand up to the harsh conditions of professional use. - Pedro's popular Y-Wrenches feature heat-treated tool steel construction and durable plastic body designed to stand up to the harsh conditions of professional use. - The new improved ergonomic design features a refined body shape for improved fit and comfort, new quick-spin bit sleeves for speed and versatility, and bit-size indication for quick tool identification. - Backed by Pedro's lifetime warranty.

Flat wrench inserts from Wolf Tooth turn your flat wrench into many other tools. - All inserts are 1 inch hex drive interface compatible - Design and manufactured in Minneapolis, MN USA - Nickel plated 4140 chromoly steel

The Pack Hanger Alignment Tool allows quick adjustments to be made to the derailleur hanger while on the trail or in the workshop. Alignment fixes are quick and intuitive, as you only need to adjust the hanger handle until it is parallel with the indicator rod. By using the bike's axle for reference, you don't need to be concerned with the wheel for making adjustments to the hanger. This new tool has included options for QR and thru axle. And for simple and durable storage, the components of this tool also nest inside of the handle. - Quick, easy deployment at the trailhead or workshop with all components ready to go inside the handle. - Tightening knob employs a clever rock-to-lock thread engagement that saves time while installing and removing. - Alignment is made by a simple, intuitive process of lining up the handle to the indicator rod. No turning the wheel or dodging spokes required. - Works on 12mm thru axle and 5mm quick release bikes

The ultimate trailside companion. These high tensile steel multi-tools feature a precise fit and finish and side grips for a secure handhold even with gloves on. The m10 includes: Hex wrenches: #2, 2.5, 3, 4, 5, 6, 8 Screwdrivers: Phillips #2, flat #2 Torx: t-25 Length: 89 mm Weight: 124g Warranty: Lifetime

Wheels Manufacturing open bore adapters are used to press sealed cartridge bearings into place. The adapters are machined with one step to correspond to the bearing OD, which fits in to the center of the sealed bearing and an outside diameter to accommodate the bearing's outer diameter. Size: [Bearing inner diameter] x [Bearing outer diameter] Note: If only one dimension is given, that is the outer diameter of the adapter, with no inner diameter step