Parts

Shimano BB-ES51 Octalink V2 Bottom Brackets - Fits Shimano Octalink V2 Spline Cranksets - Crankarm fixing bolts not included

- Simple and reliable square taper bottom bracket - Replaces both BB-UN26 and BB-UN55 - Sealed cartridge bearings - Cr-Mo axle - For bicycles equipped with a chain case, select BB-UN300-K - For E-type front derailleur compatibility, choose BB-UN300-E - Fixing bolts not included; Shimano FC-E6000 bolts suggested

Shimano's Click'R PD-T400 offers easy access to the cycling lifestyle, no matter your experience level. The Click'R pedal system requires 60% less effort than a standard Shimano SPD, so clipping in or out is smooth and effortless. And, adjustable spring tension provides customizable pedal performance to suit your riding style. A wide, supportive pedal cage, and a double-sided clipless pedal, impart confidence, letting you ride with ease and comfort. Tough chromoly axles and low-maintenance sealed cartridge bearings provide on-road and on-trail durability. - 507 grams (pair)

Shimano Deore M6000 CS-HG500-10 10-speed cassette. Combinations: - 11 – 25T: 11-12-13-14-15-17-19-21-23-25T - 12 – 28T: 12-13-14-15-17-19-21-23-25-28T - 11 – 32T: 11-12-14-16-18-20-22-25-28-32T - 11 – 34T: 11-13-15-17-19-21-23-26-30-34T

Shimano's Deore-level 10-speed Chain offers excellent power transfer and top-notch durability. It showcases a mud-shedding design and Shimano's directional design with engineered inner and outer plates for smooth, fast and precise shifting.

With quicker brake engagement and shorter free stroke, the Shimano Deore BR-M6100 brake set delivers intuitive braking so you can stay focused on the trail ahead. The I-Spec EV shift lever offers a wider adjustment range for superior rider tuning. - Intuitive and powerful braking - Quicker brake engagement with shorter free stroke - Rider tunable and action-optimized cockpit - High-performance brake control - Additional contact point for a stiffer brake lever - 10 deg. rotation angle setting range for I-Spec EV shifting lever - Lever/caliper sets sold individually for front or rear.

Shimano Deore M590 trigger style shifters provide excellent functionality for 3x9 drivetrains. - Optical gear display - 2-Way release feature - Derailleur cables included

Shimano's SM-RT64 disc brake rotors deliver powerful and consistent braking performance in all riding conditions. SHimano's Center Lock mounting system makes installing and removing disc brake rotors quick and easy thanks to the spline mount and lock ring design. - Compatible with both resin and metal pads - Includes external type rotor lockring

Shimano's Deore XT Ice-Tech rotors utilize the industry standard 6-bolt mounting system for secure mounting. These rotors use an aluminum core with steel outer plates to better control the temperature of the braking surface. This means quieter braking and, more importantly, less fade on long downhills and improved pad life. The various sizes give you total freedom of choice over the delicate balance of power versus weight.

Shimano's Deore XT Rear Derailleur uses cold-forged construction and cutting edge technology to deliver crisp shifting, real-world reliability, and trademark precision. Plus-type derailleurs use a lever-actuated clutch spring to prevent chain slap, reduce noise while on the trail, and improve chain engagement when riding over rough terrain. Sealed pulley bearings keep things spinning smoothly, and wide plate construction prevents the derailleur from getting clogged with mud and debris.

Shimano's Di2 electric drivetrain takes shifting to the next level. Two Di2 Battery Chargers are available. Choose the model designed for your system's battery. An additional power cable is required for the external-style battery charger (sold separately). These chargers fully charge the battery in 90 minutes.

Shimano's Di2 Battery Charger Cable plugs into the Battery Charger (shown, but sold separately) so you can keep your electronic drivetrain at full power.

This is the correct plug-and-play wire for Shimano's E-Tube Di2 electric-shifting systems. It comes in sixteen different lengths, so choose the one(s) that's right for your Di2 E-Tube wiring configuration.

Shimano's Dura-Ace 10-speed Cassette is comprised of an aluminum cog carrier, 4 titanium and 6 steel cogs (from largest to smallest respectively). This makes for a super-light and stiff cassette that makes your derailleur shift like a dream so you can dance up the climbs as easily and efficiently as your chain climbs up and down these cogs.

Shimano's new FC-RX810-2 crank balances weight and efficiency for mixed-terrain riding. Gearing options cater for the specific demands of gravel riding and to maintain tighter gear steps for maintaining pedaling rhythm. The 2x11-speed crank is available in a 48-31T, 40T, and 42T chainring combination and 170, 172.5, and 175mm crank arm lengths. - Gravel gear ratios preserve riding rhythm over rough surfaces with wider tires - Optimum gearing for mixed terrains and riding styles - Wide-range double - Gear combinations: 48-31T, 40T, 42T

The Shimano GRX BL-RX810-L brake lever offers greater rider control for mixed terrain riding thanks to Shimano's category-leading hydraulic disc brakes. Gravel-specific ergonomic shape provides more control on bumpy terrain. - Gravel-inspired lever and bracket ergonomics - Anti-slip brake lever - Greater mixed-terrain control - Designed to be used with a 1x gear setup

A light touring pedal designed for easy, reliable use for long rides and exploration. - Double-sided light-action SPD for frequent engagement and disengagement - Clean appearance to match road bikes - Weight: 450g - Cleats included: SM-SH56 (also accepts SM-SH51)

Shimano's M520s are affordable clipless pedals that are easy to enter and exit, and built to last. They boast dual-sided Shimano SPD bindings, which make them perfect for mountain bikers or roadies who prefer wearing walkable shoes with recessed cleats. The bindings are adjustable for dialing in the perfect entry and exit tension, and they have an open, mud-shedding design that prevents clogging. Chromoly axles and sealed bearings add tons of durability. - 380 grams (pair)

Shimano's M647s are bear trap-style bad boys perfect for BMX, downhill, dual-slalom, freeriding, even technical cross-country. They feature a combination of dual-sided, pop-up Shimano SPD bindings for quick and easy entry and grippy platforms that hold your feet firmly when you don't have time to clip in. Cleat tension is easily adjusted, and the chromoly axles and sealed-cartridge bearings ensure these sweet pedals hold up to the toughest of conditions and use. - Cleats included - Weight: 568 grams (pair)

Shimano's PD-R550 SPD-SL Pedals offer wide, stable platforms for great support and stability when you're out on the road. An extra-wide platform maximizes power transfer. Durable stainless steel tread plates reduce flex and pedal body wear. Wide bearing placement provides uniform load distribution for miles and miles of riding. - 310 grams (pair)

PD-R7000 NEW FEATURE - Carbon fiber reinforced resin pedal body - Wide contact area - 265g/pr (25g/pr lighter than PD-5800) BENEFIT - Optimum power transfer - Lightweight - Aerodynamic image - Color: CFRP - Average weight: 265 g - Road clearance: 31° - Binding: Single Sided - Cleat included: SM-SH11 - Optional cleat: SM-SH10 / SM-SH12 - Pedal Type: Road - Reflector: SM-PD65

PD-T421 FEATURE - CLICK'R binding on one side and flat pedal on the other - Customize the entry and release tension settings - Integrated reflector - Easier to catch the binding BENEFIT close - Versatile use - Longer life - Smart appearance - Weight: 418g - Easy entry and release - Better grip on flat side - Rider tune - Color: Black - Average weight: 418 g - Binding: Single Sided - Cleat included: SM-SH56 - Optional cleat: SM-SH51

Shimano Sora 9-Speed replacement chainrings gets your drivetrain operating smoothly again.

Shimano's Tiagra Rapidfire Plus Shift Lever (2x10-speed) is sleek, balanced and consistent. The Tiagra 4700 series provides serious entry-level riding performance with trickle-down technology from the top shelf Dura Ace line. - Model Number: SL-4700 - Series: Tiagra - Shift Lever Type: Rapidfire Plus - Cassette Compatibility: 10-speed - Front Shifting: 2-speed - Shift Cable Casing: OT-SP41

Compatible with DUAL SIS index shifting, the Shimano Tourney TY front derailleur is perfect for 3x7 and 3x6 speed drivetrains. - Action: TOP SWING - Angled clamp band design - Applicable Top-Mid tooth difference: 10T - Chain line: 47.5/50mm - Chain stay angle: 66-69 - Top gear teeth: 48T - Total capacity: 20T

Enjoy quality and reliability with the Shimano Tourney 6/7-speed rear derailleur. It makes use of Shimano SIS, HyperGlide, and Double Servo technologies for smooth, accurate shifts. - Maximum cog size: 34t - Total capacity: 43t

The uninterrupted shifting experience of the Shimano Ultegra CS-R8100 12-speed cassette range lets you climb, sprint, or cruise without stopping to think about your next gear change. Larger driving cogs maximize drivetrain efficiency and create compatibility with both Shimano 11 and 12-speed freehub bodies. Shimano HYPERGLIDE+ technology is integrated to provide seamless shifts both up and down the gear range. - Refined 12 step gear combination provides peak efficiency and accelerating performance for every racing situation - Faster, smoother shifts under maximum pedaling force - Compatible with 12-speed and road 11-speed freehub body

Offering all the precision and functionality of the DURA-ACE power meter, the ULTEGRA FC-R8100-P power meter comes in a more affordable package. Scientific training requires accurate measurement and user-friendliness, and the new ULTEGRA R8100 power meter has both. Its dual-sided measurement is accurate within 1.5% and zero offset calibration is a quick and easy process. Perhaps most importantly, its long battery life, easy recharge, and ANT+ and Bluetooth®LE connectivity makes using and recording your workouts easier than ever. Integrated, waterproof, and rechargeable Li-ion battery - Up to 300+ hours (TBD*) of ride time * Depending on ANT+/Bluetooth®LE settings Accurate data collection - ±1.5% (TBD*) strain gage accuracy throughout the entire calibration range * Depending on ANT+/Bluetooth®LE settings - Proprietary strain gauge Possible to start quickly - Simple zero offset calibration with switch on transmitter Active temperature compensation - Software automatically compensates for temperature changes

Combining Shimano's Di2 platform and the road incarnation of Hyperglide+, the Ultegra FD-R8150 front derailleur shifts between chainrings with the fast and seamless action. - Small, sleek and lightweight front derailleur - Frontal area is smaller than previous designs to reduce aerodynamic drag - Top gear teeth capacity: 50-54t - 61-66 degree chainstay angle - Includes 1 SD300 port

Shimano Ultegra ST-R8150 levers combine the accuracy of Shimano 12-speed Di2 shifting with the light weight of rim brakes. - Quick and intuitive shifting - Clearly defined click feeling with ergonomic shifting lever - Better bike control and confidence in race conditions - Hood shape and texture optimize grip and brake power transmission

Shimano's XTR XC hydraulic disc brake system increases brake rigidity for greater bike control and optimizes braking performance for different riding styles. The lever provides greater flexibility and an action-optimized cockpit layout, with adjustment for any hand or riding style and tooled reach adjustment. - 2-piston XC brake system offers high-performance brake control with reduced input force at the fingertips - Magnesium master cylinder - 1-piece Aluminum caliper - Not compatible with finned brake pads

Ultra grip bar tape is the perfect balance between soft & tacky. - Gel Infused Tape - Comfortable Gel Backing - Fits Flat & Aero Bar Systems - Friction-Free Gel: Gel Backing Reduces Road Vibration - Washable - Length: 2000mm

Slide in Serfas' BPS100 Shimano Compatible Road Pads for reliable braking. These cartridge style brake pads install easily and all hardware is included.

Slide in Serfas' BPS110 Shimano Compatible Pads for reliable braking. These replacement pads fit Serfas' BPS-100 cartridges and are for standard rims only.

Connectors feature Serfas' great dual-density design for excellent comfort. The hard inners offer a firm base and the soft outers provide a tacky and comfortable feel. And Connectors are easy to install and super secure, too.

Serfas' DBPS3 MTB Shimano Compatible Disc Pads offer long-lasting, reliable braking. They're semi-metallic for durability and are compatible with Shimano Deore Hydraulic BR-M555 brakes.

Serfas' DBPS4 MTB Shimano Compatible Disc Pads offer long-lasting, reliable braking. They're semi-metallic for durability and are compatible with Shimano Deore Mechanical BR-M515 brakes.

Serfas delivers superior comfort for those long days on the bike with their Dual Density saddle. The base absorbs shock while the top layer uses Silk-Tech Lycra to conform to your shape giving you frictionless comfort. The anatomic dip relieves pressure from sensitive areas, too. • Rails: Steel • Size: 279mm x 171mm • Weight: 565 Grams • Cover: Silk-Tech Lycra

Serfas delivers superior comfort for those long days on the bike with their Dual Density saddle. The base absorbs shock while the top layer uses gel to conform to your shape giving you frictionless comfort. The anatomic dip relieves pressure from sensitive areas, too. • Rails: Steel • Size: 254mm x 178mm • Weight: 575 Grams • Cover: Silk-Tech Lycra

With Serfas' high-tech base technology and Infinite Comfort System, the Women’s Dual Density feels as comfortable as your living-room recliner. The anatomic channel relieves pressure from sensitive areas and the gel padding and shock-absorbing rubber inserts smooth every ride. Plus, the side and nose bumpers protect this saddle from the occasional mishap. • Cutout Base for Soft Tissue Relief • Rails: Steel • Size: 254mm x 178mm • Weight: 545 Grams • Cover: Silk-Tech Lycra

With Serfas' high-tech base technology and Infinite Comfort System, the Men’s Dual-Density feels as comfortable as your living-room recliner. The anatomic channel relieves pressure from sensitive areas and the gel padding and shock-absorbing rubber inserts smooth every ride. Plus, the side and nose bumpers protect this saddle from the occasional mishap. • Cutout Base for Soft Tissue Relief • Rails: Steel • Size: 279mm x 171mm • Weight: 565 Grams • Cover: Silk-Tech Lycra

If you're looking for a saddle with plush comfort and a narrow profile, Serfas' E-Gel Hybrid Elastomer saddle fits the bill. It offers Serfas' cushy E-Gel Technology, a deep-groove design, and elastomer springs for a super cushy ride. Plus, the sporty style and amazing comfort keep you smiling mile after mile. • Rails: Steel • Size: 279mm x 171mm • Weight: 635 Grams • Cover: Soflex

If you're looking for a plush, comfortable saddle with a narrow profile and superior pressure relief, Serfas' E-Gel Hybrid fits the bill. It offers Serfas' cushy E-Gel Technology, a deep-groove design, and elastomer springs for a super cushy ride. Plus, the sporty style and amazing comfort keep you smiling mile after mile. • Rails: Steel • Size: 279mm x 171mm • Weight: 635 Grams • Cover: Soflex

If you're looking for a saddle to ride all day on, Serfas' E-Gel Reactive fits the bill. It offers Serfas' Reactive Gel technology, with a Serfas' Anatomic Groove Design for a super ride. Plus, the Soflex cover adds to the seamless cushiness to keep you smiling mile after mile. • Rails: Steel • Size: 267mm x 165mm • Weight: 620 Grams • Cover: Soflex

If you're looking for a saddle to ride all day on, Serfas' Women's E-Gel Reactive fits the bill. It offers Serfas' Reactive Gel technology, with a Serfas' women's-specific Anatomic Groove Design for a super ride. Plus, the Soflex cover adds to the seamless cushiness to keep you smiling mile after mile. • Rails: Steel • Size: 260mm x 178mm • Weight: 625 grams • Cover: Soflex

Let your developing rider enjoy big-time comfort courtesy of the Serfas Youth Reactive Gel saddle. It features a soft gel-top layer for maximum support as well as an element-proof saddle cover so they can test their skills in any weather. A groove down the middle eliminates pressure on sensitive areas, and the youth-specific size fits smaller cyclists to ensure that this saddle will be an instant favorite. • Deep Groove design • Progressive Foam technology • Rails: Steel • Size: 229mm x 140mm • Weight: 400 grams • Cover: Weather-proof

Serfas' Exerciser saddle delivers excellent comfort so you can keep the pedals turning for hours. Its wide base offers outstanding support and its soft Reactive Gel pad molds to you for a custom fit. The grooved top eliminates pressure to sensitive areas, too. • Specifically engineered for stationary bicycles • Gel top layer • Deep Groove Design • Progressive Foam technology • Size: 324mm x 311mm • Weight: 1230 grams • Cover: Lycra

End your seat discomfort by installing a Serfas Gel Saddle Pad. Thanks to super-plush gel, this sweet cover provides a level of comfort you have to feel to believe. Plus, it features easy drawstring installation, which means you can quickly move it between bikes if you ride more than one. There's no easier way to upgrade your bike and ride more comfortably. • Deep Groove for Increased Blood Flow • Gel For Increased Friction Protection • Easy Drawstring Installation

Serfas' Performance RX saddle is your prescription for riding with comfort. It boasts a cutaway top that minimizes pressure, dual-density padding for cushioning, and a protective layer of friction-fighting Reactive Gel. What's more, the split design allows the two sides of the seat to flex independently for even more comfort. • Narrow Design for Endurance • Twin Bar Design • Rails: Chromoly • Size: 264mm x 158mm • Weight: 430 Grams • Cover: Waterproof, Breathable, Anti-Microbial Microfiber

Serfas Polka Dot Bar tape was designed to give riders the advantage of Silicone without the added weight. Synthetic cork tape smooths out vibrations from rough conditions, while the small silicone dots provide additional grip in wet or dry conditions—a true blend of comfort and performance. The tape is effective and comfortable if you ride with or without gloves.

Serfas' RX saddle is your prescription for riding in comfort. It boasts a cutaway top that minimizes pressure, dual-density padding for cushioning, and a protective layer of friction-fighting Reactive Gel. What's more, the Twin Bar design allows each side to flex independently for even more comfort while the four-way stretch Lycra top increases the saddle's longevity. • Twin Bar Design • Rails: Steel • Size: 267mm x 171mm • Weight: 485 Grams • Cover: Silk-Tech Lycra

Serfas' Women's RX saddle is your prescription for riding in comfort. It boasts a cutaway top that minimizes pressure, dual-density padding for cushioning, and a protective layer of friction-fighting Reactive Gel. What's more, the Twin Bar design allows each side to flex independently for even more comfort while the four-way stretch Lycra top increases the saddle's longevity. • Twin Bar Design • Rails: Steel • Size: 267mm x 171mm • Weight: 485 Grams • Cover: Silk-Tech Lycra

Serfas' RX saddle is your prescription for riding in comfort. It boasts a cutaway top that minimizes pressure, dual-density padding for cushioning, and a protective layer of friction-fighting Reactive Gel. What's more, the Twin Bar design allows each side to flex independently for even more comfort. • Twin Bar Design • Rail: Steel • Size: 267mm x 171mm • Weight: 485 Grams • Cover: Vinyl • Cover: Waterproof, Breathable, Anti-Microbial Microfiber

Serfas' Women's RX saddle is your prescription for riding in comfort. It boasts a cutaway top that minimizes pressure, dual-density padding for cushioning, and a protective layer of friction-fighting Reactive Gel. What's more, the Twin Bar design allows each side to flex independently for even more comfort. • Twin Bar Design • Rail: Steel • Size: 267mm x 171mm • Weight: 485 Grams • Cover: Vinyl • Cover: Waterproof, Breathable, Anti-Microbial Microfiber

Serfas' Reactive Bar Gel installs underneath your bar tape and eliminates painful, fatigue inducing road vibration so you'll ride longer, fresher, and with more comfort, period. Four pads cover your drops and bar tops and can be cut for a perfect fit. • Gel Pad Inserts Alleviate Road Vibration • Four Pads Cover Bar Tops and Drops • Cutable Pads Ensure Custom Fit • Color: Clear

The Men’s Reactive Gel is like having your very own custom saddle. The gel padding molds to your anatomy for a perfect fit and the groove in the top eliminates pressure on sensitive areas. Plus, the rear bumper protects this sweet saddle from the occasional mishap. • Deep Groove design • Progressive Foam technology • Sturdy Nylon rear bumper • Rails: Steel • Size: 267mm x 165mm • Weight: 555 Grams • Cover: Lycra

Make sure you have plenty of stopping power and ride with a set of Serfas high-quality long-lasting disc brake pads. - Semi-Metallic Disc Brake Pads - Hardware Included - Compatible w/ Shimano Ultegra BR-RS805/505

Whether you want more leverage for climbing or just more hand positions, Serfas' Stabilizer-AL Bar Ends deliver. They feature a lightweight, ergonomic design that is easy on your hands. The inner aluminum frame clamps to your bars to keep the bar ends in place, while the soft Kraton rubber outside provides comfort and a great grip. • Sleek Aluminum Frame • Soft Kraton Rubber Outer Layer • 4 mm Allen Bolt Grips Handlebar • Compatible with Carbon Handlebars

Serfas' Synthetic Cork Bar Tape offers great comfort, grip and vibration absorption. This light, stretchy tape is easily installed thanks to the adhesive back and adds a touch of class to any bike. • Thin, Lightweight and Stretchable • Adhesive Backing for Easy Installation • Shock Absorbent • Washable

Quick Overview Our latest addition to the Tailbones® family introduces a top layer of Memory Foam for a more personalized feel and added comfort. Serfas Tailbones® saddles supports the sit bones and provides a smooth comfortable ride using Progressive Density Foam while a Deep Groove Design allows maximum blood flow into the neurovascular bundle for drastically reduced numbness and discomfort. Features: - Top Layer of Memory Foam For Added Comfort - High Sit Area For Soft Tissue Relief - Progressive Foam Technology - Relaxed Riding Position - Rails: Steel - Cover: Waterproof Vinyl - Length: 263mm - Width: 198mm - Weight: 520g +/- 90 Day Comfort Guarantee We understand finding the perfect saddle can be tough, which is why every Serfas® saddle sold is backed by our 90-Day Comfort and Satisfaction Guarantee Limited Lifetime Warranty We stand behind our products and are committed to providing the high quality all of our customers deserve which is why Serfas® warrants to the original purchaser of a saddle that the product is free from defects in materials and workmanship for the lifetime of the product.