2018 Rocky Mountain Thunderbolt Carbon 90 BC Edition

Upper mid-range component level carbon frame crosscountry bike

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2018 Rocky Mountain Thunderbolt Carbon 90 BC Edition
  • MSRP $5,999
  • Suspension Full
  • Front Travel 140mm
  • Rear Travel 140mm
  • Frame Carbon
  • Fork 
    Fox Performance Elite Float 36
  • Wheels 27.5″ Aluminum
  • Drivetrain 1 × 12
  • Groupset 
    SRAM GX Eagle
  • Seatpost Dropper post
Gearing

1 × 12 — 12 speed

2018 Rocky Mountain Thunderbolt Carbon 90 BC Edition
28 mph
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26 mph

The 2018 Thunderbolt Carbon 90 BC Edition is easier to ride up hills than similar bikes.

Similar bikes won‘t keep up with the 2018 Thunderbolt Carbon 90 BC Edition while riding downhill or sprinting.

Geometry

Oh snap! This frame was drawn from the actual bike geometry measurements. Roll over the table below to highlight frame dimensions.

Size
Stack 583593602611626
Reach 380408430453479
Stack/Reach Ratio1.531.451.401.351.31
Top Tube Length 548578603628658
Seat Tube Length 356394432471509
Seat Tube Angle73.973.973.973.973.9
Head Tube Length 100110120130145
Head Tube Angle65.965.965.965.965.9
BB Drop 2424242424
BB Height 331331331331331
Front Center 679711737764796
Chainstay Length 426426426426426
Wheelbase 1,1041,1361,1621,1891,221
Rake 4444444443
Standover Height 799799799799799
🐐 Measurements listed in millimeters and degrees
Build
FrameSMOOTHWALL™ Carbon. Full Sealed Cartridge Bearings. Press Fit BB. Internal Cable Routing. 2-Bolt ISCG05 Tabs. RIDE-9™ Adjustable Geometry + Suspension Rate / SMOOTHWALL™ rear triangle
ForkFox 36 Float Performance Elite 140mm
Rear ShockFOX Float DPS EVOL Performance Elite
Bottom BracketSRAM GXP BB92
HeadsetFSA Orbit NO.57E
StemRocky Mountain 35 CNC
HandlebarRace Face Turbine R 780mm
SaddleWTB Silverado Race
SeatpostFox Transfer Performance Elite 30.9mm
Pedals
GripsRocky Mountain Lock On XC
Components
Front Derailleur
Rear DerailleurSRAM GX Eagle
ShiftersSRAM GX Eagle
CrankSRAM Stylo 7k Eagle 34T
CassetteSRAM XG-1275 10-50T
ChainSRAM GX Eagle
Chain Guide
BrakesSRAM Guide RS
Brake LeversSRAM Guide RS
Wheels
RimsStans Arch MK3 Tubeless Ready - Tape / Valves Incl
SpokesWTB 1.8-1.6
Front HubRocky Mountain Sealed Boost 15mm
Rear HubDT Swiss 350 Boost 148mm
TiresMaxxis Minion DHF Maxx Terra 3C Tubeless Ready 27.5 x 2.3 / Maxxis Minion DHR II Maxx Terra 3C Tubeless Ready 27.5 x 2.3
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2018 Rocky Mountain Thunderbolt Carbon 90 BC Edition