Skip to main content

FREE Shipping Now Available on Orders $50+ (excluding oversized items)

Why shop at Mad Dog Cycles? Learn more about our promise here!

Filter By:

  • Show More Brands

  • Show Fewer Brands
  • Show More Sizes
  • Show Fewer Sizes
  • Show More Model Years
  • Show Fewer Model Years

Drivetrain Components

$22.00
The EX1 drive train was designed specifically for the demands of electric-assist mountain bikes: a wide gear range with bigger jumps between gears and sturdy components to handle higher torque loads. Liberal use of features found on SRAM’s high end MTB parts provide high value, quiet operation and ease of service. - X-Sync (wide-narrow) tooth profiles for great chain management - Compatible with Bosch mid-drive E-bike systems - Material: Steel - Size/BCD: Direct mount - Recommended Group: EX1
$22.99
MicroSHIFT ADVENT Xpress shifters feature ergonomic levers and precise, durable indexing for reliable performance in a variety of situations. - Sealed bearings for extra light shifting, especially when paired with clutch derailleur - Ergonomic trigger placement - Aluminum bracket - Compatible with microSHIFT ADVENT only
$22.99
DS85 shifters feature a low-profile body, light and precise action, and an optical gear indicator for a more refined shifting experience. - Include shift cables - Low profile body is compatible with Campagnolo-style shift cables only - Visible Gear indicator - Compatible with Shimano mountain and road systems - Indexed left shifter works for double and triple
$22.99
This Shimano CUES SL-U4000 Rapidfire Plus Mono 2x shift lever's refined shape and light operation provide riders with a comfortable, easy-to-use interface. - Light and responsive front shifting improves efficiency and control - Rapidfire Plus Mono shifts both up and down with a single lever - Easily-visible gear position indicator option improves shifting control - 1800mm Optislick inner shift cable improves cable routing efficiency and provides excellent corrosion resistance - Clamp band mount type
$22.99 - $29.95
Claris R2000 series offers reliable functionality at a price point for new riders. Designed for easy rides around town with the durability to handle a long tour, Claris R2000 has a sporty design and promises the opportunity of comfortable and casual riding.
$23.00
Turn any 8-10 speed HG-splined cassette hub into a 3/32-inch 16-tooth singlespeed.
$23.00
- X8.99: stretchproof, chamfered plate, full-nickel plated chain for 5-8 speed and great for internal geared hubs - Z72: chamfered inner plates with Bulls-eye rivets for 5-8 speed - Z51: standard bushingless, chamfered plate chain for 5-8 speed - Z30: economy bushingless chain for 5-8 speed - Width = 3/32-inch
$23.00
Original equipment on SRAM and Truvativ cranks, these chainrings also work well with other drivetrains.
$23.00
SRAM’s PC-971 Chain delivers light weight, strength and smoothness to your drivetrain. Its nickel-plated sideplates provide faster and more accurate shifting plus excellent reliability. And, with its great PowerLink, you don’t even need tools to install it.
$23.00 - $28.00
- Trushift chainrings feature shift ramps and pins - Drivetrain compatibility: 8, 9, 10, 11 - 104mm BCD
$23.99 - $24.99
- Cassette Body Type: Shimano/SRAM 8, 9, 10 Speed - Drivetrain Speeds: 8
$23.99
The Shimano Altus RD-M310 rear derailleur is a quality, durable replacement rear derailleur for 7 and 8-speed drivetrains. - 13t upper and 15t lower pulleys - Maximum cog size: 34t - Total capacity: 43t
$23.99 - $37.99
Claris HG50 cassettes ensure a durable and low maintenance system that's easy-to-operate, with accurate and light-action shifting for Shimano 8-speed drivetrains. - Nickel plated finish for corrosion resistance - Steel lock ring - MODEL NO: CS-HG50-8 - SERIES: SHIMANO CLARIS R2000 Series - Compatible chain: CN-HG71 - Speeds: 8-speed - Type: HG
$23.99 - $33.99
- New 3D composite chain ring teeth composition is optimized for chainwheel load out
$23.99 - $29.99
The Tourney TY501 crankset provides crisp, reliable shifting for your triple chainring drivetrain. - Precision indexed shifting - 8/7/6-speed compatible - 3 crank length specification available - Precise chain line control - Light and reliable shifting - Versatile performance - Wide compatibility with multiple components - Quick and precise assembly
$24.00
SRAM’s 11-speed chain features heavily chamfered outer plates for improved shifting and quiet running. And, with its great PowerLock connecting link, installation and removal is a snap.
$24.00
SRAM's road chainrings are stamped from 7075 aluminum for low weight and excellent strength. The teeth are ramped for precision shifting, too.
$24.00
SRAM's X3 Rear Derailleur is ready for adventure. Its composite and steel construction is tough, while SRAM's 1:1 actuation ratio and direct cable routing provide quick, reliable shifts. This derailleur is compatible with 7- or 8-speed drivetrains.
$24.99 - $49.99
Dimension Multi Speed Chainrings. - CNC-machined AL-7075 - Has ramps and pins to aid in shifting (not on 74mm BCD inner chainring) - Same BCD as Surly Long Haul Trucker, Cross-Check, and Troll complete bikes (74mm & 110mm)
$24.99 - $54.99
Dimension Chainrings. - No ramps, pins, or shift aids
$24.99 - $29.99
MicroSHIFT's H10 cassettes are manufactured to exacting tolerances for straightness, shift quality, and durability, resulting in responsive shifting performance that lasts longer than you might expect. - Sprockets are chrome-plated for hardness and corrosion resistance - Continuously molded cogs are straighter than stamped steel, resulting in more consistent, predictable shifting performance - Precision ramps and chamfers for rapid chain movement - Compatible with SRAM and Shimano 10-speed systems - Steel lock ring Gear combinations: - 11-25T: 11-12-13-14-15-17-19-21-23-25 - 11-28T: 11-12-13-14-15-17-19-21-24-28 - 11-32T: 11-12-13-15-17-19-21-24-28-32 - 11-34T: 11-12-13-15-17-19-21-24-28-34 - 11-36T: 11-13-15-17-19-21-24-28-32-36
$24.99 - $29.59 $24.99 - $36.99 Up to 20% Off
High-strength steel cassette for Shimano MTB. Shimano HG hub body compatible. Features: - 7-speed, 11 – 32T, 11 – 34T, 13 – 34T - Nickel-plated steel cogs (cogs larger than 40T are finished black)
$24.99
SHIMANO DEORE - 126 links for HG 12-SPEED - MTB Chain The M6100 chain provides smooth shifting and enhanced chain retention thanks to an extended portion of the inner plate. The new chain features QUICK-LINK assembly and is optimized for HYPERGLIDE+ cassettes and DYNAMIC CHAIN ENGAGEMENT+ chainrings. - Proprietary design ensures smooth shifting and strength - Extended inner plate improves chain engagement and retention - Shorter shift times and less pedaling shock - Optimized to work with HYPERGLIDE+ cassette sprockets and DYNAMIC CHAIN ENGAGEMENT+ chainrings
$24.99
- MODEL NO: CS-HG41-7 - SERIES: SHIMANO - Combination: 11-13-15-18-21-24-28T (ac) - Combination name(Group name): 11-28T (ac) - Compatible chain: IG/HG - Speeds: 7-speed - Type: HG
$24.99
Cassette Body Type: Shimano 8 Cassette Cogs: 11 , 13 , 15 , 17 , 20 , 23 , 26 , 34 Cassette Spacing: Shimano/SRAM 8 Chain Compatibility: 3/32" Number of Speeds: 8 Range: 11-34
$24.99
Genuine replacement parts Product details Replacement 3S chainkeeper and hardware For use with Domane 4-6, Madone 4-7, and Crockett CX
$24.99 - $27.99
WTP Supply Chain, heat-treated links and riveted pins, made by KMC, thicker plates to resist impacts and grind damage. - Includes pre-assembled half link - Stamped WTP logo - 90 links - Color: Silver - Drivetrain Speeds: Single Speed - Chain Connection Type: Pressed Pin
$25.00
The KMC X-Series has been designed with the specific characteristics of the Shimano, SRAM, and Campagnolo systems in mind and will meet the most demanding requirements. Elaborately designed and manufactured, the X-Bridge technology, thanks to precisely chamfered plates, allows a smooth propulsion and perfect gear changes in all driving situations. - Size: 1/2"x11/128" - Length: 116 Links - Weight: 273 grams
$25.00
- 1/2" x 11/128" - 116 Links - Silver - 9 speed - Compatible with Shimano, SRAM & Campagnolo 9 Speed Systems - Mushroomed Pin Riveted - 277 grams - Super fast + smooth shifting. - Full Nickel Plated - Inner Plate Chamferring - Mushroomed Riveting - Outer Plate Chamfering - Stretch Proof Treatment
$25.00
SRAM's 3.0 Twist Shifters are simple to use and offer solid shifting and reliable construction. Using SRAM's 1:1 actuation ratio technology, the 3.0s are easy to set up and easy to adjust. Plus, with a simple twist of the wrist, you can shift a handful of gears at once.