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    Groupsets

    SRAM GX Eagle AXS Upgrade Kit - Thunder Mountain Bikes
    GX Eagle AXS POD Upgrade Kit
    SRAM
    $625.00
    Sold Out
    X01 Eagle AXS Upgrade Kit
    X01 Eagle AXS Upgrade Kit
    SRAM
    $875.00 $669.99
    Sold Out
    SRAM XX1 Eagle AXS Upgrade Kit - Thunder Mountain Bikes
    XX1 Eagle AXS Upgrade Kit
    SRAM
    $1,170.00 $889.99
    SRAM GX Eagle Transmission AXS E-Bike Groupset - Thunder Mountain Bikes
    SRAM GX Eagle Transmission AXS E-Bike Groupset - Thunder Mountain Bikes
    GX Eagle Transmission AXS E-Bike Groupset
    SRAM
    from $1,049.00
    Save 26%
    Shimano Deore XT LinkGlide M8130 Upgrade Kit - Thunder Mountain Bikes
    Deore XT LinkGlide M8130 Upgrade Kit
    Shimano
    $435.00 $319.99
    SRAM X0 Eagle Transmission AXS E-Bike Groupset - Thunder Mountain Bikes
    SRAM X0 Eagle Transmission AXS E-Bike Groupset - Thunder Mountain Bikes
    X0 Eagle Transmission AXS E-Bike Groupset
    SRAM
    from $1,429.00
    SRAM GX Eagle Transmission AXS Groupset - Thunder Mountain Bikes
    SRAM GX Eagle Transmission AXS Groupset - Thunder Mountain Bikes
    GX Eagle Transmission AXS Groupset
    SRAM
    $1,199.00
    SRAM X0 Eagle Transmission AXS Groupset - Thunder Mountain Bikes
    SRAM X0 Eagle Transmission AXS Groupset - Thunder Mountain Bikes
    X0 Eagle Transmission AXS Groupset
    SRAM
    from $1,599.00
    Save 24%
    SRAM NX Eagle Groupset - Thunder Mountain Bikes
    SRAM NX Eagle Groupset - Thunder Mountain Bikes
    NX Eagle Groupset
    SRAM
    $445.00 from $339.99
    XTR DI2 M9250 Upgrade Kit
    XTR DI2 M9250 Upgrade Kit
    Shimano
    $985.00
    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
    Save 22%
    SRAM XX Eagle Transmission AXS Groupset - Thunder Mountain Bikes
    SRAM XX Eagle Transmission AXS Groupset - Thunder Mountain Bikes
    XX Eagle Transmission AXS Groupset
    SRAM
    $2,299.00 from $1,799.00
    Deore XT DI2 M8250 Upgrade Kit
    Deore XT DI2 M8250 Upgrade Kit
    Shimano
    $860.00
    SRAM XX SL Eagle Transmission AXS Power Meter Groupset - Thunder Mountain Bikes
    SRAM XX SL Eagle Transmission AXS Power Meter Groupset - Thunder Mountain Bikes
    XX SL Eagle Transmission AXS Power Meter Groupset
    SRAM
    $2,999.00
    Eagle 90 Transmission E-Bike Groupset
    Eagle 90 Transmission E-Bike Groupset
    SRAM
    from $650.00
    Eagle 90 Transmission Groupset
    Eagle 90 Transmission Groupset
    SRAM
    from $660.00
    Save 21%
    Eagle 70 Transmission Derailleur & Shifter
    Eagle 70 Transmission Derailleur & Shifter
    SRAM
    $175.00 $138.99
    Eagle 90 Derailleur & Shifter
    Eagle 90 Derailleur & Shifter
    SRAM
    $265.00
    Save 29%
    XTR M9100 1x Upgrade Kit
    XTR M9100 1x Upgrade Kit
    Shimano
    $916.60 $649.99
    Sold Out
    Deore DI2 M6250 Upgrade Kit
    Deore DI2 M6250 Upgrade Kit
    Shimano
    $675.00

    Let customers speak for us

    from 2207 reviews
    Excellent

    Easy setup and does what it is intended to do

    Syrus J.
    Bash Guide V2 - ISCG05
    Hub parrs

    Great service ordered the wrong item and great response on setting up exchange

    Roger E.
    Rapid Drive 108 Freehub Pawls
    exactly what I needed

    east replacement and quick shipping

    Bruce D.
    SLX BL-M7100 Brake Lever Blade
    I9 hydra2

    Always impressed with the availability of Thunder Mountain. Packages arrived as described and flawless. Thank you!

    Nicholas A.
    Hydra2 Enduro Front Wheel
    Free Rider pro bike shoes

    Item came exactly as described would buy from them again

    Dan F.
    Men's Freerider Pro Flat Pedal Shoe
    Nice for trail rides ergon style !

    I decided to replace my stock e-mtb saddle after my padded shorts were no longer working for saddle sore. This saddle had been good so far (about 4 rides in) . It is comfortable for rides when I feel like staying in the saddle and for climbing trails (the rear curve in the saddle holds me in place). Works well with my worn padded shorts.

    R A.
    Men's SM E-Mountain Pro Saddle
    XT Lever Blade

    It works

    Shawn C.
    Deore XT BL-M8100 Brake Lever Blade
    These guys rock

    They had what I wanted and it shipped super fast! Will definitely use Thunder Mountain Bikes again

    Paul W.
    Eagle 90 Transmission Crankset

    Excellent quality, fast shipping

    Santos
    Polymer Coated Shift Cable & Housing Set
    Industry Nine Hydra Hub

    Customer service was excellent! Great place to do business!

    Lawrence S.
    Hydra Classic 6-Bolt Front Hub
    Solid upgrade

    Looks great and seems sturdier/stiffer than stock rotors

    Adrian K.
    XTR RT-MT905 Disc Brake Rotor
    Work fine

    F

    Greg B.
    N04C-MF Disc Brake Pads - Metal/Composite
    Shimano 8100 XT crankset & Chainring

    Thunder Mountain is great. Affordable and quick ship times always. I originally choose TM after the advice of 'Hardtail Party' channel and Steve was not wrong.
    Let's Go!

    Gregory T.
    Deore XT SM-CRM85 Chainring - 12-Speed

    Awesome brake pads

    Joseph
    N04C-MF Disc Brake Pads - Metal/Composite

    Ratchet Freehub Body - Shimano Micro Spline MTN Light

    Dan N.
    Ratchet Freehub Body - Shimano Micro Spline MTN Light
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