Topstone 2 GRX - 2x
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Explore further. Ride freer.

An amazingly capable, versatile gravel road bike. Built for chasing horizons, exploring routes less travelled or accelerating your commute.

Model Description

Two rings, endless possibilities. This Topstone is built to tackle the toughest gravel rides with Shimano GRX 400 2x10-speed shifting and a SmartForm C2 Alloy frame. With ample tire clearance and mounts for racks and gear, it’s engineered to meet the demands of adventurous riders and unpredictable routes.

What it's for

Gravel-riding, exploring, bikepacking, performance commuting

Highlights

  • Lightweight SmartForm C2 Alloy frame w/ full carbon fork
  • Reliably precise shifting from the Shimano GRX 400, wide-range, 2x10-speed gravel drivetrain
  • Powerful, controllable braking from Shimano’s GRX400 hydraulic disc brakes
  • Selle Royal SRX Open saddle balances supportive padding and a pressure-relieving central channel for performance comfort

Cannondale

Topstone 2 GRX - 2x

$2,199.00

Size Guide

Jump to: MOUNTAIN | GRAVEL | ROAD | ELECTRIC | FITNESS

Mountain Bikes

Trail

4'6" - 5'2"
137 - 157 
 5'1" - 5'4"
154 - 162 
 5'3" - 5'8"
160 - 172 
  5'7" - 6'0" 
170 - 182 		  5'11" - 6'3" 
180 - 190 
XS S M L XL

Trail Women's

4'6" - 5'2"
137 - 157 
 5'1" - 5'4"
154 - 162 
 5'4" - 5'8"
162 - 172 
  5'7" - 6'0" 
170 - 182 
XS S M L

Trail SE

5'1" - 5'4"
154 - 162 
 5'4" - 5'8"
162 - 172 
  5'7" - 6'0" 
170 - 182 		  6'0" - 6'3" 
182 - 190 
S M L XL

Habit, Habit HT

5'0" - 5'2"
142 - 157 
 5'1" - 5'5"
154 - 165 
 5'4" - 5'9"
162 - 175 
  5'8" - 6'0" 
172 - 182 		  5'11" - 6'5" 
180 - 195 
XS S M L XL

Scalpel, Scalpel SE, Scalpel HT

5'1" - 5'5"
154 - 165 
 5'4" - 5'9"
162 - 175 
  5'8" - 6'0" 
172 - 182 		  5'11" - 6'5" 
180 - 195 
S M L XL

Jekyll

5'2" - 5'5"
157 - 165 
 5'4" - 5'9"
162 - 175 
  5'8" - 6'0" 
172 - 182 		  5'11" - 6'5" 
180 - 195 
S M L XL

Moterra, Moterra LT, Moterra SL

5'1" - 5'5"
154 - 165 
 5'4" - 5'9"
162 - 175 
  5'8" - 6'1" 
172 - 185 		  6'0" - 6'5" 
182 - 195 
S M L XL

Gravel

Topstone, Topstone Carbon

4'10" - 5'5"
147 - 165		 5'3" - 5'9"
160 - 175		 5'7" - 6'1"
170 - 185		  5'10" - 6'4" 
177 - 193		  6'0" - 6'8"
182 - 203
XS 
 
 S M L XL

SuperSix EVO SE, SuperSix EVO CX

5'0" - 5'4"
152 - 162
 5'5" - 5'9"
165 - 175 
 5'7" - 5'11"
170 - 180 
  5'10" - 6'1" 
177 - 185		  6'0" - 6'4" 
182 - 193
46cm 
 
 51cm 54cm 56cm 58cm

Road

Synapse

5'0 - 5'4"
152 - 162 
 5'2" - 5'6"
157 - 167 		 5'5" - 5'9"
165 - 175 		 5'7" - 5'11"
170 - 180 		  5'10" - 6'1" 
175 - 185		  6'0" - 6'4" 
182 - 193 		 6'3" - 6'8" 
190 - 203
44cm 48cm
 		 51cm 54cm 56cm 58cm 61cm

SuperSix Evo

5'1 - 5'5"
154 - 165 
 5'3" - 5'7"
160 - 170 		 5'5" - 5'9"
165 - 175 		 5'7" - 5'11"
170 - 180 		  5'10" - 6'1" 
177 - 185		  6'0" - 6'4" 
182 - 193 		 6'3" - 6'7" 
190 - 200
44cm
48cm
 		 51cm 54cm 56cm 58cm 61cm

SystemSix

5'3 - 5'7"
160 - 170 
 5'5" - 5'9"
165 - 175 		 5'7" - 5'11"
170 - 180 		 5'10" - 6'2"
177 - 187 		  6'10" - 6'4" 
182 - 193		  6'2" - 6'6" 
187 - 198 		 6'5" - 6'9" 
195 - 205
47cm 51cm
 		 54cm 56cm 58cm 60cm 62cm

CAAD Optimo

5'2" - 5'5"
157 - 165 
 5'3" - 5'7"
160 - 170 		 5'5" - 5'9"
165 - 175 		 5'7" - 5'11"
170 - 180 		  5'10" - 6'1" 
177 - 185		  6'0" - 6'4" 
182 - 193 
44cm 48cm
 		 51cm 54cm 56cm 58cm

CAAD13

5'3" - 5'7"
160 - 170 		 5'5" - 5'9"
165 - 175 		 5'4" - 5'9"
170 - 180 		  5'10" - 6'1" 
177 - 185		  6'0" - 6'4" 
182 - 193 		 6'2" - 6'6" 
187 - 198 
48cm
 		 51cm 54cm 56cm 58cm
60cm

Fitness, Urban & Comfort

Adventure, Adventure EQ

4'11" - 5'6"
149 - 167		 5'5" - 5'10"
165 - 177 
  5'9" - 6'2" 
175 - 187 
S M L

Quick, Quick Women's, Quick Remixte

4'10 - 5'3"
147 - 160 
 5'2" - 5'7"
157 - 170 		 5'5" - 5'10"
165 - 177 		 5'9" - 6'2"
175 - 187 		  6'0" - 6'5" 
182 - 195		  6'4" - 6'9" 
193 - 205 
XS S
 		 M L XL XXL

Quick CX

5'2" - 5'7"
157 - 170 
 5'5" - 5'10"
165 - 177 
 5'9" - 6'2"
175 - 187 
  6'0" - 6'5" 
182 - 195		  6'4" - 6'9" 
193 - 205
S 
 
 M L XL XXL

Quick CX Women's

4'10" - 5'3"
147 - 160 
 5'2" - 5'7"
157 - 170 
  5'5" - 5'10" 
165 - 177 
XS S M

Bad Boy

5'2" - 5'7"
157 - 170 
 5'5" - 5'10"
165 - 177 
  5'9" - 6'2" 
175 - 187 		  6'0" - 6'5" 
182 - 195 
S M L XL

Treadwell, Treadwell EQ

4'11" - 5'6"
149 - 167 
 5'4" - 6'0"
162 - 182 
  5'10" - 6'5" 
177 - 195 
S M L

Treadwell Remixte, Treadwell EQ Remixte

4'11" - 5'6"
149 - 167 
  5'4" - 6'0" 
162 - 182 
S L

Electric

Adventure Neo, Adventure Neo EQ

4'11" - 5'7"
149 - 170 
  5'7" - 6'6" 
170 - 198 
S L

Adventure Neo Allroad, Adventure Neo Allroad Low StepThru

5'0" - 5'7"
152 - 170
 5'5" - 5'10"
165 - 177 
  5'9" - 6'5" 
175 - 195 
S M L

Compact Neo

4'5" - 6'1"
134 - 185 
OS

Tesoro Neo SL, Tesoro Neo SL Remixte

5'4" - 5'8"
162 - 172
 5'7" - 6'0"
170 - 182 
  6'0" - 6'3" 
182 - 190 
S M L

Treadwell Neo, Treadwell Neo Remixte

4'11" - 5'6"
149 - 167
 5'4" - 6'0"
162 - 182 
  5'10" - 6'5" 
177 - 195 
S M L
In stock
PRO SETUP Expert Assembly 95% Ready to ride out of the box.
CERTIFIED Master Mechanic Assembly Precision dialed before shipping.
SINCE 1992 Over 30 Years of Trust Decades of cycling expertise.

SKU: C15235U10XL

Explore further. Ride freer.

An amazingly capable, versatile gravel road bike. Built for chasing horizons, exploring routes less travelled or accelerating your commute.

Model Description

Two rings, endless possibilities. This Topstone is built to tackle the toughest gravel rides with Shimano GRX 400 2x10-speed shifting and a SmartForm C2 Alloy frame. With ample tire clearance and mounts for racks and gear, it’s engineered to meet the demands of adventurous riders and unpredictable routes.

What it's for

Gravel-riding, exploring, bikepacking, performance commuting

Highlights

  • Lightweight SmartForm C2 Alloy frame w/ full carbon fork
  • Reliably precise shifting from the Shimano GRX 400, wide-range, 2x10-speed gravel drivetrain
  • Powerful, controllable braking from Shimano’s GRX400 hydraulic disc brakes
  • Selle Royal SRX Open saddle balances supportive padding and a pressure-relieving central channel for performance comfort
SPECIFICATIONS

Frameset

  • FrameTopstone, lightweight SmartForm C2 Alloy, 12x142 thru-axle, tapered headtube, BSA threaded BBm flat mount disc, StraightShot internal cable routing, multiple gear/bottle mounts
  • ForkTopstone Carbon, 1-1/8" to 1.5" steerer, 55mm OutFront offset, flat mount disc, internal routing, 12x100 thru-axle, fender/gear mounts
  • HeadsetIntegrated, 1-1/8" - 1.5"

Drivetrain

  • Rear DerailleurShimano GRX 400, Shadow RD+
  • Front DerailleurShimano GRX 400
  • ShiftersShimano GRX 400, 10-speed
  • ChainShimano HG54, 10-speed
  • CrankShimano GRX 400 46/30
  • Rear CogsShimano HG500, 11-32, 10-speed
  • Bottom BracketShimano BSA 68

Brakes

  • BrakesShimano GRX 400 hydraulic disc, 160/160mm RT30 centerlock rotors
  • Brake LeversShimano GRX 400 hydraulic disc

Wheels

  • Front HubShimano TC500, 12x100mm centerlock
  • Rear HubShimano TC500, 12x142mm centerlock
  • RimsGXD 1.0, 28h, 23mm internal width, tubeless ready
  • SpokesStainless Steel, 14g
  • Tire Size37
  • Wheel Size700c
  • TiresWTB Riddler TCS Light, 700x37c, tubeless ready
  • Front TireWTB Riddler TCS Light, 700x37c, tubeless ready
  • Rear TireWTB Riddler TCS Light, 700x37c, tubeless ready

Components

  • HandlebarCannondale 3, butted 6061 Alloy, 16 deg flare drop: 400mm (XS), 420mm (SM-MD), 440mm (LG-XL)
  • StemCannondale 3, 6061 Alloy, 31.8, 7°: 80mm (XS), 90mm (SM-MD), 100mm (LG-XL)
  • GripsCannondale Knurl Cork, 2.7mm
  • SaddleSelle Royal SRX Open
  • SeatpostCannondale 3, 6061 Alloy, 27.2x350mm

Extra

  • Extra 1Tubeless valves
GEOMETRY

See the Topstone 2 GRX - 2x in Action