Rotational Impact Protection Fit System Weight Best For Battery Max Torque Motor Range Top Speed Crank Fork Dropper Post Wheels Tire Size Drivetrain Brakes Frame MTB
Transition Bicycle Company
Spire Carbon GX
$5,999.00

Spire Carbon GX alternate view
Spire Carbon GX alternate view
Spire Carbon GX alternate view
Spire Carbon GX alternate view
Spire Carbon GX
Spire Carbon GX
$5,999.00

COLOR  
SIZE  Size Chart
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The Spire blends DH bike capability with mid-travel efficiency in such a way it’s almost two bikes in one. A delicately tuned pedaling and pumping platform, super supple beginning stroke sensitivity and all the travel you could ask for makes for a mind bending ride. Happily climb up to your favorite challenging descent, then cruise on over to your local flow trail and you’ll be rewarded on both ends of the spectrum. 

 

Drivetrain
SRAM GX Eagle 1 x 12
Dropper Post
OneUp Dropper Post
Fork
RockShox ZEB Ultimate
Frame
Carbon
Tire Size
29" x 2.4"
ComponentsParts
FrameSpire Carbon 170mm
Rear ShockRockShox Super Deluxe, Ultimate Air (205x65)
ForkRockShox ZEB Ultimate, 170mm Travel/44mm Offset
HeadsetFSA NO.55R/57
StemANVL Swage (40mm)
HandlebarANVL Mandrel Alloy 35, SM (800x20) MD/LG/XL (800x30) XXL (800x40)
GripsSensus Lite
SaddleANVL Forge Cromo
SeatpostOneUp Dropper Post
BrakesSRAM Code RSC
RotorsSRAM Centerline (220mm/200mm)
ShifterSRAM GX Eagle
DerailleurSRAM GX Eagle
CassetteSRAM XG 1275 (10-52t)
ChainSRAM GX Eagle
ChainguideOneUp Bash Guide
CrankSRAM GX Alloy DUB (30t/165mm)
RimsStans Flow S1
SpokesSapim Race Double Butted
HubsStans Neo Durasync
Tire/FrontSchwalbe Magic Mary, Super Trail, Soft (29x2.4)
Tire/RearSchwalbe Big Betty, Super Trail, Soft (29x2.4)
IncludedTubeless Valves & Stans Sealant (6oz)

* Specs subject to change

SpireS, HIGH/LOWM, HIGH/LOWL, HIGH/LOWXL, HIGH/LOW2XL, HIGH/LOW
A. REACH (in)16.9 / 16.718.1 / 17.919.1 / 18.820.1 / 19.921.1 / 20.9
B. STACK (in)24.3 / 24.524.3 / 24.524.7 / 24.925.1 / 25.225.4 / 25.6
C. EFFECTIVE TT LENGTH (in)21.5/ 21.622.7 / 22.823.8 / 23.924.9 / 2526 / 26.1
D. SEAT TUBE LENGTH (in)14.215.416.918.119.3
E. EFFECTIVE ST ANGLE79.6° / 79.1°78.8° / 78.3°78.1° / 77.6°77.5° / 77°77.2° / 76.7°
SADDLE HEIGHT FOR EFFECTIVE ST ANGLE23.626.028.330.732.3
ACTUAL ST ANGLE70.5° / 70°70.5° / 70°70.5° / 70°70.5° / 70° 
SEAT TUBE OFFSET AT BB (in)3.93.93.93.93.9
F. HEAD TUBE LENGTH (in)3.93.94.34.75.1
G. HEAD TUBE ANGLE63° / 62.5°63° / 62.5°63° / 62.5°63° / 62.5°63° / 62.5°
H. CHAINSTAY LENGTH (in)17.5 / 17.617.5 / 17.617.5 / 17.617.7 / 17.817.7 / 17.8
I. WHEELBASE (in)48.3 / 48.449.4 / 49.550.6 / 50.752.0 / 52.153.2 / 53.3
J. BOTTOM BRACKET DROP (in)1 / 1.31 / 1.31 / 1.31 / 1.31 / 1.3
K. ESTIMATED BB HEIGHT (in)13.7 / 13.513.7 / 13.513.7 / 13.513.7 / 13.513.7 / 13.5
L. STAND OVER HEIGHT (in)26.9 / 26.727.5 / 27.328.1 / 27.928.7 / 28.529.3 / 29.1
M. FORK OFFSET (in)1.71.71.71.71.7
Rider HeightBike Size
5'2" - 5'6"S
5'6" - 5'10"M
5'10" - 6'2"L
6'2" - 6'6"XL
6'4" - 6'8"2XL

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