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Cannondale Topstone Sora #9
Cannondale   Back to Lister
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YearSpan: 2020
Cost: 1400
S_T_E_M:  
BarTy: Drop
StemM: Cannondale 4, 6061 Alloy, 31.8,
BarD: 31.8
BarM: Cannondale 3, butted 6061 Alloy, 16 deg flare drop
SteerD: 28.6T
SeatPostD: 27.2
C_R_A_N_K:  
CrankTy: Square
CrankM: FSA Tempo Adventure 46/30
BBModel: FSA Cartridge
BBShell: 68BSA
SpindleL:  
G_E_A_R:  
ShiftTy: STI
ShifterM: Shimano Sora
FrontDer:  
RearDer:  
CassetteM: Sunrace, 11-34, 9-speed
ChainM: KMC Z9, 9-speed
CogCount: 2x9
FrontCogs: 46/30
RearCogs: 11-34
LowGear: 0.88
HighGear: 4.2
B_R_A_K_E:  
BrakeTy: CableDisk
BrakeM: Promax Decoder R
BrakeLeverM:  
BrakeMount: Flat
RotorD: 160/160
W_H_E_E_L:  
FrontHub:  
RearHub: Formula RX-142 12x142
FrontAxle: 12x100
RearAxle: 12x142
RimM: RD 2.0, 28h
RimD: 622
Spokes: 28

Geometry
TitleFitSizeWheelsizeCSHTHTAngleSTSTAngleTTTT_EffReachStackWBase
XS159 4308970.041073.15255253685181010
SM169 43011871.045873.15445443685181022
MD178 43014971.050573.15615613855791040
LG187 43018271.055373.15795793946101060
XL197 43021471.060073.15965964026401078

Store Inventories
The following stores stock this model.
Store NameAddressPhoneSizes in stock

Editors comments: This is a lightweight aluminium frame bike (10.8 kg), with reasonable low gear for light touring. I would be tempted to put 36t rear cassette on it. Standard square taper crank. Bad things are internally routed cables, 28 spoke wheels, thru axle. Sora is a good groupset, other reviews suggest swapping out the Sora with Acera MTB and 40t cassettes.

Maintenance: Std crank, but wheels not standard. Internal cables can be hard to manage.

Manufacturers blurb: Cannondale 2020 Topstone Sora Bicycle - Unisex The budget Topstone model offers excellent value given it has the same frameset as its more expensive siblings. It uses the latest generation Shimano Sora gearing which works exceptionally well for the price. The 30-34t climbing gear gets you a 24 inch; gear which allows for a decent cadence right down to about 7km/h. But a cool thing about Sora is that its compatible directly with Shimano Acera MTB derailleurs and Sunrace 11-40t cassettes, lowering the gearing right down to 20.5 gear inches perfect for those who love steep hills like me! To cut costs elsewhere, the brakes are cable operated, the crankset is square taper, the tyres are wire bead and the rims are not tubeless compatible. The only change other than the colour is a swap to WTB Riddler Comp 37mm gumwall tyres.

  Full Carbon, 1-1/8" to 1-1/4" steerer, 55mm OutFront offset, flat mount disc, internal routing, 12x100 thru axle Frame SmartForm C2 Alloy, 142x12 thru-axle, tapered headtube, flat mount disc, StraightShot internal cable routing, multiple gear/bottle mounts

  142x12 thru-axle