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    Drivetrain

    SRAM XX Eagle Transmission Cassette (XS-1297) - Thunder Mountain Bikes
    SRAM XX Eagle Transmission Cassette (XS-1297) - Thunder Mountain Bikes
    XX Eagle Transmission Cassette (XS-1297)
    SRAM
    $605.00
    Save 16%
    SRAM AXS Pod MMX Clamp - Thunder Mountain Bikes
    AXS Pod MMX Clamp
    SRAM
    $20.00 $16.80
    Black mountain bike brake cable housing with end caps, coiled for easy storage and installation
    Gray mountain bike hydraulic brake hose with black fittings, coiled for easy storage and installation.
    SP41 Shift (Derailleur) Cable Housing
    Shimano
    from $3.99
    $3.99/ft
    Save 16%
    Mountain bike headset parts: red spacer, black stem adapter, and silver bearing race
    GX Transmission AXS Rear Derailleur Full Mount Bolt Kit
    SRAM
    $20.00 $16.80
    Wolf Tooth 104 BCD Chainring - Thunder Mountain Bikes
    Wolf Tooth 104 BCD Chainring - Thunder Mountain Bikes
    104 BCD Chainring
    Wolf Tooth
    from $59.95
    Save 16%
    SRAM Stainless Steel Shift Cable Housing Kit - Road/MTB 4mm Reinforced Linear Strand BLK
    SRAM shift cable system for road and MTB bikes, 1.1mm stainless steel cable with housing
    Stainless Steel Shift Cable & Housing Kit
    SRAM
    $35.00 $29.40
    Shimano Deore rear derailleur and shifter kit with battery for mountain bikes
    Shimano Deore rear derailleur kit with battery and shifter for mountain bikes
    Deore DI2 M6250 Upgrade Kit
    Shimano
    $675.00
    Race Face 30mm BB system mountain bike bottom bracket with black and red seals
    Race Face 30mm BB system mountain bike bottom bracket with red seals
    CINCH Threaded Bottom Bracket
    Race Face
    $62.99
    Save 35%
    SRAM XX Eagle Transmission AXS E-Bike Groupset - Thunder Mountain Bikes
    SRAM XX Eagle Transmission AXS E-Bike Groupset - Thunder Mountain Bikes
    XX Eagle Transmission AXS E-Bike Groupset
    SRAM
    $1,759.00 from $1,143.35
    Save 16%
    SRAM XX SL Transmission AXS Rear Derailleur Cage Assembly Kit - Thunder Mountain Bikes
    XX SL Transmission AXS Rear Derailleur Cage Assembly Kit
    SRAM
    $230.00 $193.20
    Save 16%
    SRAM Transmission AXS Rear Derailleur Set Up Key / Cage Lock - Thunder Mountain Bikes
    SRAM Transmission AXS Rear Derailleur Set Up Key / Cage Lock - Thunder Mountain Bikes
    Transmission AXS Rear Derailleur Set Up Key / Cage Lock
    SRAM
    $17.00 $14.28
    Sold Out
    SRAM X0 Eagle Transmission Power Meter Crankset - Thunder Mountain Bikes
    X0 Eagle Transmission Power Meter Crankset
    SRAM
    $440.00
    Save 16%
    SRAM XX Eagle Transmission Brose Chainring - Thunder Mountain Bikes
    XX Eagle Transmission Brose Chainring
    SRAM
    $120.00 $100.80
    Sold Out
    SRAM XX SL Eagle Transmission AXS Groupset - Thunder Mountain Bikes
    SRAM XX SL Eagle Transmission AXS Groupset - Thunder Mountain Bikes
    XX SL Eagle Transmission AXS Groupset
    SRAM
    $2,399.00
    Black bike headset spacers and crown race tools for mountain bike maintenance and setup
    Spacers and bolt kit (B1)
    Ochain
    $30.00
    SRAM Eagle drivetrain rear derailleur for mountain bikes, black component with pulleys and cage
    SRAM Eagle Drivetrain rear derailleur for mountain bikes, black finish with precision gearing
    S100 Eagle Rear Derailleur
    SRAM
    $70.00
    SRAM Eagle mountain bike chain with 12-speed links for trail riding and bike upgrades
    SRAM Eagle mountain bike chain with durable links for trail riding performance
    S100 Eagle Chain
    SRAM
    $30.00
    Shimano XTR rear derailleur for mountain bikes, high-performance bike component
    Shimano XTR rear derailleur for mountain bikes, high-performance gear shifting component
    XTR M9250 Rear Derailleur
    Shimano
    $665.00
    Save 42%
    SRAM XX Eagle Transmission TQ Chainring - Thunder Mountain Bikes
    SRAM XX Eagle Transmission TQ Chainring - Thunder Mountain Bikes
    XX Eagle Transmission TQ Chainring
    SRAM
    $120.00 from $69.99
    Sold Out
    5Dev 3-Bolt Titanium Chainring - Thunder Mountain Bikes
    5Dev 3-Bolt Titanium Chainring - Thunder Mountain Bikes
    3-Bolt Titanium Chainring
    5Dev
    $199.99 from $99.99
    Save 16%
    SRAM X0 Transmission AXS Rear Derailleur Full Mount Bolt Kit - Thunder Mountain Bikes
    X0 Transmission AXS Rear Derailleur Full Mount Bolt Kit
    SRAM
    $35.00 $29.40
    Save 16%
    XX Eagle Transmission Avinox Chainring
    SRAM
    $120.00 $100.80
    Shimano Deore mountain bike crankset with 30T chainring, black finish, 12-speed compatible
    Shimano Deore mountain bike crankset with 32T chainring, black finish, for trail riding
    Deore M6200 Crankset
    Shimano
    $100.00
    Black mountain bike shifter lever for trail riding and gear changes
    SRAM Eagle Drivetrain 1Click shifter with X-Actuation for mountain bikes
    S100 Eagle Trigger Shifter
    SRAM
    $30.00

    Let customers speak for us

    from 4000 reviews
    Worked

    Worked perfect

    Terry F.
    BH90 Olive & Barb (Connecting Insert)

    Orders these spacers, they came the next day. Simple to install fit perfectly.

    jerry
    Fork Volume Spacer
    Great

    Great experience

    THOMAS D.
    Thunder Mountain Bikes

    Great product!!!!

    Amando G.
    Flare R City Rear Bike Light (2026)

    Got what I asked for very quickly no fuss no must. Much appreciated as always.

    Jeremy
    Hydra Gen 1 Hub Bearing Kit
    Everything needed to complete the bleed

    Everything needed to complete the bleed. Quality components.

    Steve H.
    Pro Mineral Oil Bleed Kit - V3
    Solid grip, no noise

    Solid grip, no noise. Highly recommend.

    Steve H.
    Gold Label HD Brake Pads - SRAM Maven
    Smooth lever, love the adjustability

    Smooth lever, love the adjustability.

    Steve H.
    Maven Silver B1 Lever
    Perfect part and I love how the product page

    Perfect part and I love how the product page reminded me to get the end cap.

    Robert P.
    Rapid Drive 108 Freehub Body
    Awesome product and price

    Awesome product and price. Super fast delivery. I already have them installed and they are rolling super fast. Thanks Thunder Mountain!

    Johnboy
    Hydra Classic 6-Bolt Rear Hub
    Better than my last one from 2 years ago

    Better than my last one from 2 years ago. It’s freaking great, thanks!

    Johnboy
    Reverb AXS B1 Dropper Seatpost
    New pod is good

    New pod is good. Wasn’t sure if I’d like it or not but it’s pretty rad

    Johnboy
    AXS Pod Rocker Controller D1
    More comfort for the old rider

    Rock solid great handlebars 30 mm rise is perfect

    Kevin H.
    Fatbar Lite V3 Handlebar

    Unbelievable customer service. Great prices and fast shipping. You CAN have all three

    Bobby L.D.
    Thunder Mountain Bikes
    Bronze for the win

    Great Deity stem. Absolutely love the bronze on black!

    Thomas W.
    Copperhead Stem
    2721
    78