Bicycle Derailleur Gear Kit - 21 Speed Shifting System, Aluminum Alloy | Construction Accessory, Drivetrain Solution, Precision Control Equipment | Off Road Use During Mountain Trails and Rugged
Estimate for one unit, air shipping. Final total is confirmed at checkout.
Product arrives warehouse Oct 8 - Oct 21. Products ship from our warehouse every Friday. Delivered to you by Nov 3, 2026.
About this item
Condition
Bicycle Derailleur Gear Kit - 21 Speed Shifting System, Aluminum Alloy | Construction Accessory, Drivetrain Solution, Precision Control Equipment | Off Road Use During Mountain Trails and Rugged · x1
Similar Items
-7%RD-TZ500 Direct Mount 6 Speed Bicycle Rear Derailleur with Bracket, Red, Compatible with 6-Speed Drivetrain Systems
$17.19
$18.49
-5%RideFlare Bicycle Chain Wax Melting System – Mess-Free, Efficient Chain Waxing Pot with Precise Temperature Control and Ultra Low Friction Chain Wax for Quiet, Clean Drivetrains
$75.99
$79.99
Box One/Two Prime 9 X-Wide 11-50T Range Multi Shift Drivetrain Cycling Groupset Shifter Rear Derailleur Bike Cassette Chain Shift Cable & Housing Kit
$208.99
-26%Manual Drivetrains and Axles (Automotive Systems Books)
$161.72
$219.99
-5%RD-M310 Rear Derailleur 7/8 Speed Bike, Direct Mount Lightweight Aluminum Long Cage for Mountain Road Hybrid City Bikes, Smooth Precise Shifting (Black)
$29.43
$30.98
-6%SHIMANO CUES CS-LG400-9 Cassette - 9-Speed, 11-36t, Black | CUES CS-LG400-9 LINKGLIDE 9-Speed E-Bike Cassette 11-36t
$32.83
$35.00
BUCKLOS 5 Speed Bike Freewheel 14-28T Threaded Screw-On Bicycle Freewheel | High Strength Steel Smooth Shifting Performance Compatible with SHIMANO 5 Speed MTB Cruiser City Bikes Replacement Part
$15.99
FUNDAMENTALS OF TRANSMISSION AND DRIVETRAIN SYSTEMS: Theory, Diagnosis, and Service for Passenger Cars, Light Trucks, Commercial Vehicles, and Electrified Drivetrains
$149.95
How a Transmission Works for Beginners: Manual, Automatic, CVT and Drivetrain Systems Explained (Mechanical Systems for Beginners Book 8)
$0.00
SRAM Herren Eagle 90 Kettenblatt
$727.65
Park Tool CG-2.3 Chain Gang Chain Cleaning System Blue, One Size
$48.95
Origin8 Chain Tension Adjuster
$14.09
Smoothe Lube Chain Prep Formula
$12.00
-15%DJC Bike Chainring 104mm BCD Round/Oval MTB 104BCD 30T to 52T 7/8/9/10/11/12 Speed Narrow Wide Tooth Aluminum 7075 Super Lightweight 30T 32T 34T 36T 38T 40 42 DH XC Trail Fat Bike Ebike
$10.00
$11.90
-21%SRAM PC-XX1 Eagle 12 Speed Chain
$82.75
$105.00
-7%SE Bikes SE Chain Tensioner | SE Bikes Alloy Chain Tensioner - Adjustable, Durable Bicycle Part
$18.49
$19.95
-5%VG Sports 12 Speed MTB Groupset Bike Chain 11-50T Cassette 1x12 Speed Rear Derailleur& Shifter (12S 11-50T Set)
$141.54
$148.99
SRAM PC-XX1 Eagle 12 Speed Chain
$93.50
A Rear derailleur kit Suitable for SRAM and Garbaruk 11/12-speed, 12T + 16T Rear derailleur Pulleys, Ceramic Bearings.
$50.68
Red Seal Heavy Equipment Technician Exam 421A Study Guide: Master Hydraulics, Electrical & Drivetrain Systems with Expert Strategies + 1500 Practice Q&As with Detailed Explanations (15 Full Tests)
$29.99
-9%KCNC OSPW Oversized Pulley System Cage - Compatible with Shimano Dura-Ace R9100 Ultegra R8000 - Sealed Bearings
$89.95
$98.95
SUN BICYCLES 7-Speed and Disc Brake Trike Conversion Kit
$214.90
Manual Drivetrains and Axles (7th Edition) (Automotive Systems Books)
$282.80
-7%RD-TZ500 Direct Mount 6 Speed Bicycle Rear Derailleur with Bracket, Red, Compatible with 6-Speed Drivetrain Systems
$17.19
$18.49
-5%RideFlare Bicycle Chain Wax Melting System – Mess-Free, Efficient Chain Waxing Pot with Precise Temperature Control and Ultra Low Friction Chain Wax for Quiet, Clean Drivetrains
$75.99
$79.99
Box One/Two Prime 9 X-Wide 11-50T Range Multi Shift Drivetrain Cycling Groupset Shifter Rear Derailleur Bike Cassette Chain Shift Cable & Housing Kit
$208.99
-26%Manual Drivetrains and Axles (Automotive Systems Books)
$161.72
$219.99
-5%RD-M310 Rear Derailleur 7/8 Speed Bike, Direct Mount Lightweight Aluminum Long Cage for Mountain Road Hybrid City Bikes, Smooth Precise Shifting (Black)
$29.43
$30.98
-6%SHIMANO CUES CS-LG400-9 Cassette - 9-Speed, 11-36t, Black | CUES CS-LG400-9 LINKGLIDE 9-Speed E-Bike Cassette 11-36t
$32.83
$35.00
BUCKLOS 5 Speed Bike Freewheel 14-28T Threaded Screw-On Bicycle Freewheel | High Strength Steel Smooth Shifting Performance Compatible with SHIMANO 5 Speed MTB Cruiser City Bikes Replacement Part
$15.99
FUNDAMENTALS OF TRANSMISSION AND DRIVETRAIN SYSTEMS: Theory, Diagnosis, and Service for Passenger Cars, Light Trucks, Commercial Vehicles, and Electrified Drivetrains
$149.95
How a Transmission Works for Beginners: Manual, Automatic, CVT and Drivetrain Systems Explained (Mechanical Systems for Beginners Book 8)
$0.00
SRAM Herren Eagle 90 Kettenblatt
$727.65
Park Tool CG-2.3 Chain Gang Chain Cleaning System Blue, One Size
$48.95
Origin8 Chain Tension Adjuster
$14.09
Smoothe Lube Chain Prep Formula
$12.00
-15%DJC Bike Chainring 104mm BCD Round/Oval MTB 104BCD 30T to 52T 7/8/9/10/11/12 Speed Narrow Wide Tooth Aluminum 7075 Super Lightweight 30T 32T 34T 36T 38T 40 42 DH XC Trail Fat Bike Ebike
$10.00
$11.90
-21%SRAM PC-XX1 Eagle 12 Speed Chain
$82.75
$105.00
-7%SE Bikes SE Chain Tensioner | SE Bikes Alloy Chain Tensioner - Adjustable, Durable Bicycle Part
$18.49
$19.95
-5%VG Sports 12 Speed MTB Groupset Bike Chain 11-50T Cassette 1x12 Speed Rear Derailleur& Shifter (12S 11-50T Set)
$141.54
$148.99
SRAM PC-XX1 Eagle 12 Speed Chain
$93.50
A Rear derailleur kit Suitable for SRAM and Garbaruk 11/12-speed, 12T + 16T Rear derailleur Pulleys, Ceramic Bearings.
$50.68
Red Seal Heavy Equipment Technician Exam 421A Study Guide: Master Hydraulics, Electrical & Drivetrain Systems with Expert Strategies + 1500 Practice Q&As with Detailed Explanations (15 Full Tests)
$29.99
-9%KCNC OSPW Oversized Pulley System Cage - Compatible with Shimano Dura-Ace R9100 Ultegra R8000 - Sealed Bearings
$89.95
$98.95
SUN BICYCLES 7-Speed and Disc Brake Trike Conversion Kit
$214.90
Manual Drivetrains and Axles (7th Edition) (Automotive Systems Books)
$282.80