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Rear Derailleur

julio 22, 2026

KCNC Road Cycle Oversized Pulley Cage for Shimano Ultegra 6800/Dura Ace 9000

KCNC Road Cycle Oversized Pulley Cage for Shimano Ultegra 6800/Dura Ace 9000KCNC Road Bike Derailleur Pulley Wheel System Cage The system consists of Top 14t & Bottom 16t alloy pulley wheels fitted with low friction bearings and a lightweight cage made from 7075 Alloy . The Oversized Pulley Wheel System reduces friction in the pulleys by 45 % and for your optimised performance. The system is compatible with Shimano Ultegra/Dura Ace 10s and 11s, electronic and mechanical rear derailleur . Top Pulley :14T Bottom Pulley :16T Material : 7075 Alloy Fully CNC Bearing:Sealed Steel Ball Bearing Color:Black / Red / Gold available Weight : approx.57 grams / 2oz For Road Shimano Ultegra/Dura Ace 6700/6770/6800/6870/7700/7800/7900/7970/9000/9070 usePaymentDelivery detailsTerms of salesAbout usContact usPayment We only accept payment via Ebay.Delivery details If buyers are in US,it will take 1-10 working days via USPS First Class Mail and 1-3 working days via Priority Mail. If buyers are from other countries,it will usually take 10-28 working days or 1-3 working days via express. Terms of sales Buyers can return items in 30 days since receiving the items as long as keeping it unused and original box.About us We are a trading company in Taiwan and have sufficient stocks to accommodate various product requests. Our goal is to provide the cheapest and best quality products to our buyers. Just come surfing our store and enjoy it!Contact us If you have any question,please just contact us via ebay message.
julio 22, 2026

Universal Bicycle Rear Derailleur Hanger Mountain Road Bike Tail Hook Pack of 2

Description:The purpose of the rear derailleur hook of the bicycle is to connect the frame to the rear derailleur of the transmission, the upper end of the tail hook is connected to the frame, and the lower end is connected to the rear derailleur of the transmission. The strength of the tail hook is relatively low. When the rear dial of the transmission is hit by a side impact, it may bend or even break, thereby protecting the rear dial of the transmission. For your easy installation and remove, we have matching screws for you, you can install and remove it easily.Fit for most of bike, cyclocross bike, hybrid bike, mountain bike, road racing bike, etc.This is non-OEM product, accessory only!SpecificationsColor: Silver ToneMaterial: Aluminium AlloyThread Diameter: 9mm / 0.35''Hole Diameter: 10mm / 0.39''Size: 6.3x3.2x0.8cm / 2.
julio 22, 2026

Shimano Zee M640 Shadow+ 10 Spd MTB Rear Derailleur

Product description Shimano Zee M640 Shadow+ 10 Speed Rear Derailleur The Zee RD-M640 features Shadow Plus technology proven to reduce chain slap, drop and impact noise and the 10-speed short cage RD’s low profile tucks safely below the cassette cogs. With two spec options that enable a typical MTB cassette (11-32,11-34,11-36) or a close ratio road cassette (11-23,11-25,11-28), Zee is ready to handle the needs of enduro and DH racers. 10-speed also offers complete compatibility with Dyna-Sys MTB product and Shimano’s latest chain and cassette technology. Shimano introduces Zee, a new line of gravity components that are an ideal starting point for aggressive riders and racers. Zee is the gateway gravity component line that allows riders to get on board with Shimano’s gravity program and experience premium new component technologies at a price they can afford.
julio 22, 2026

Shimano Acera RD-M360-SGS Rear Derailleur, 7/8 Speed, Long Cage, Silver NEW

Need help? We are open M-F 8-4 Central Shimano Acera RD-M360-SGS Rear Derailleur, 7/8 Speed, Long Cage, Silver NEW Shimano's Acera component family is recognized for its durability, reliability, and welcoming price point. The Acera M360 SGS Rear Derailleur is no exception. The advanced light-action long cage design is compatible with Shimano/SRAM 7 or 8 speed cassettes that don't exceed a 34 tooth cog. The full-metal construction and Teflon coated bushings are primed and set to take on even the roughest of trails. Advanced light-action design Teflon-coated bushings Direct-attach rear derailleurs Item Specifications:Rear Derailleur/Shifter: Shimano MountainRear Derailleur Mount Type: Direct MountDrivetrain Speeds: 7/8 spdChain Wrap Capacity (teeth): 43Cage Length: LongCassette Spacing: ShimanoLargest Cog (teeth): 34 teeth Condition Notes   While working on bicycles is not difficult, an improperly assembled / tuned bicycle can lead to damage to the bicycle or injury to you. We recommend that you have a qualified mechanic install components and service your bicycle. Brakes - It is not uncommon that new hydraulic brakes would required bleeding. While not difficult for a qualified mechanic it is very easy to introduce air into the lines. We strongly recommend you have a qualified mechanic bleed your brakes if necessary. Wheels - It is not uncommon that a new wheel may require some minor truing and if equipped bearing cone adjustment. Suspension - Shocks are not easily serviced outside a shop setting. Any adjustment beyond rebound and sag should be done by a shop. Quick note on lockout function, it will not become rigid, it will however be very stiff. NOTE: STRIPPED THREADS IN CRANKS AND PEDALS ARE DUE TO THOSE COMPONENTS NOT BEING PROPERLY TIGHTENED.  STRIPPED THREADS DUE TO IMPROPER ASSEMBLY / MAINTENANCE ARE NOT COVERED BY WARRANTY.   Some items we sell qualify for the Manufacture warranty, most do not. Generally items in retail packaging can qualify, OE items do not.   While we do not extend any warranty we will offer a refund on items that fail in the first 30 days.   While working on bicycles is not difficult, an improperly assembled / tuned bicycle can lead to damage to the bicycle or injury to you. We recommend that you have a qualified mechanic install components and service your bicycle. Brakes - It is not uncommon that new hydraulic brakes would required bleeding. While not difficult for a qualified mechanic it is very easy to introduce air into the lines. We strongly recommend you have a qualified mechanic bleed your brakes if necessary. Bleeding brakes is not covered by warranty. Wheels - It is not uncommon that a new wheel may require some minor truing and if equipped, bearing cone adjustment. Minor wheel truing and cone adjustment are not covered by warranty. Suspension - Shocks are not easily serviced outside a shop setting. Any adjustment beyond rebound and sag should be done by a shop. Quick note on lockout function, it will not become rigid, it will however be very stiff. We will not replace a shock that does not become "rigid "when locked out if equipped. NOTE: STRIPPED THREADS IN CRANKS AND PEDALS ARE DUE TO THOSE COMPONENTS NOT BEING PROPERLY TIGHTENED.  STRIPPED THREADS DUE TO IMPROPER ASSEMBLY / MAINTENANCE ARE NOT COVERED BY WARRANTY.   Rates - please see shipping tab at the top of the description for expedited options. AK, HI, APO/FPO - Shipping to these locations is a global on / off function. Due to the varied nature of our product mix and the impact of DIM weight we are not able to ship to these locations.   Please see the Shipping and Payments tab   Please see the Shipping and Payments tab   We prefer email. We answer email M-F. Please use the ask a question link at the bottom of the description or the ask seller a question link at the top of the page. We strive to answer all email within 1 business day. We are open M-F 8-4 Central. Sorry we are no longer allowed to list our phone number, please use the "Find Contact Information" form.   We respect your privacy. We only collect the information needed to receive your payment and ship your order. We do collect your phone number in the checkout in order to assist the carrier if there is a problem at delivery. We will not sell your information to anyone.    Where do you get your stuff? - Trade secret. Why do you use your own UPC and not the MFG's UPC? - Using our own UPC's gives us greater influence on the description. Because many of our parts are OE they either do not have a MFG UPC or may differ slightly on what is included. Using a MFG UPC can cause our description to be overridden by a catalog description that may not match what we are selling. Additionally many manufactures use UPC's that start with a 4. Those are not necessarily unique numbers and are not always valid as unique product identifiers outside a store setting. You say over and over to have a qualified mechanic work on my bike. What if I want to do my own work? - Not a problem, most repairs are easy and do not require special tools. There are several great instructional resources out there. Just be aware as a novice it will take you longer and components damaged due to improper installation are not covered by warranty. Can I pick up my item to save shipping? - Yes, but we are in the sticks. Our closest Starbucks is 30 minutes away. We do ask that you contact us first so we can pull your order. With drive time and gas not many people realize a savings.   Our History Before disc brakes, before V-brakes, before suspension forks, around the time the first index shifters that actually worked and the first production mountain bikes hit your LBS, Ben Gibbs started Bennett’s Cycle in St. Louis Park, MN. In the late ‘90’s he sold that shop and started experimenting with online sales. Ben started selling on eBay in ’99, back in the day when your default user ID was your email address. If you wanted to get fancy you could change that to your website URL. That ID (can’t put the name here because it included a URL) was one of the first to exceed 100,000 positive feedbacks.  Our Business Philosophy Move as many parts as possible without it being a pain. Just keeping it real. Pulling that off is a bit easier said than done. In order to do that we strive to deliver value to our customers by sourcing quality products at prices that make you ask is that for real? We commit to being honest and fair in our transactions with customers and suppliers. If a dispute arises, if we are at fault, admit it early. We are committed to providing a work environment that recognizes the unique value of each of our employees. And recognize that work, while it consumes much or our time, is only a part of who we are and by being welcoming and accommodating when life spills in. The only slightly unreasonable thing we ask of them is to stay out of our parking spots. Where we are: Crosslake Sales Crosslake, MN 56442                                                     Copyright © Random Bike Parts. All rights reserved.   Sell Smarter with Kyozou.Inventory and Ecommerce Management