CannondaleTopstone 2 GRX 2x

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 2×10-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, 2×10-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

Sizing

Sizes:

Frame Size	Rider Height (in)
X-Small	4’10” – 5’5″
Small	5’3″ – 5’9″
Medium	5’7″ – 6’1″
Large	5’10” – 6’4″
X-Large	6’3″ – 6’8″

Geometry

Sizes:

Frame Size	X-Small	Small	Medium	Large	X-Large
Wheel Size	700c	700c	700c	700c	700c
Seat Tube Length (cm)	41	45.8	50.5	55.3	60
Top Tube Horizontal (cm)	53.3	54.4	55.7	57.2	58.7
Head Tube Angle	70.0°	71.0°	71.0°	71.0°	71.0°
Seat Tube Angle Effective	73.1°	73.1°	73.1°	73.1°	73.1°
Seat Tube Angle Actual	71.8°	71.8°	71.8°	71.8°	71.8°
Standover (cm)	70.3	74.4	78.4	82.4	86.4
Head Tube Length (cm)	8.6	11.5	14.7	18	21.2
Wheelbase (cm)	101.6	102.7	104.5	106.5	108.3
Front Center (cm)	59.3	60.3	62.1	64.1	65.9
Chain Stay Length (cm)	43.5	43.5	43.5	43.5	43.5
Bottom Bracket Drop (cm)	7.5	7.5	7.5	7.5	7.5
Bottom Bracket Height (cm)	28	28.4	28.4	28.4	28.6
Fork Rake (cm)	5.5	5.5	5.5	5.5	5.5
Trail (cm)	7.2	6.5	6.5	6.5	6.5
Stack (cm)	51.8	54.9	57.9	61	64
Reach (cm)	36.8	37.7	38.5	39.4	40.2

Specs are subject to change without notice.

Specs

Frame	Topstone, lightweight SmartForm C2 Alloy, 12×142 thru-axle, tapered headtube, BSA threaded BBm flat mount disc, StraightShot internal cable routing, multiple gear/bottle mounts
Fork	Topstone Carbon, 1-1/8″ to 1.5″ steerer, 55mm OutFront offset, flat mount disc, internal routing, 12×100 thru-axle, fender/gear mounts
Rims	GXD 1.0, 28h, 23mm internal width, tubeless ready
Hubs	Front: Shimano TC500, 12x100mm centerlock Rear: Shimano TC500, 12x142mm centerlock
Spokes	Stainless Steel, 14g
Tires	WTB Riddler TCS Light, 700x37c, tubeless ready
Bottom Bracket	Shimano BSA 68
Crankset	Shimano GRX 400 46/30
Shifters	Shimano GRX 400, 10-speed
Front Derailleur	Shimano GRX 400
Rear Derailleur	Shimano GRX 400, Shadow RD+
Cassette/Freewheel	Shimano HG500, 11-32, 10-speed
Chain	Shimano HG54, 10-speed
Brakes	Shimano GRX 400 hydraulic disc, 160/160mm RT30 centerlock rotors
Brake Levers	Shimano GRX 400 hydraulic disc
Handlebars	Cannondale 3, butted 6061 Alloy, 16 deg flare drop: 400mm (XS), 420mm (SM-MD), 440mm (LG-XL)
Tape/Grips	Cannondale Knurl Cork, 2.7mm
Stem	Cannondale 3, 6061 Alloy, 31.8, 7°: 80mm (XS), 90mm (SM-MD), 100mm (LG-XL)
Headset	Integrated, 1-1/8″ – 1.5″
Seatpost	Cannondale 3, 6061 Alloy, 27.2x350mm
Saddle	Selle Royal SRX Open
Pedals	Sold separately

* Subject to change without notice.

Part Numbers

Option	UPC	MPN	Store SKU
Spruce Green / X-Small / 700c	196870186286	C15235U10XS
Spruce Green / Small / 700c	196870186293	C15235U10SM
Spruce Green / Medium / 700c	196870186309	C15235U10MD	7002014803D
Spruce Green / Large / 700c	196870186316	C15235U10LG
Spruce Green / X-Large / 700c	196870186323	C15235U10XL