Cannondale Topstone Carbon geometryGravel · 2026 · 6 sizes, from 47 to 61

The Cannondale Topstone Carbon is a gravel bike available in 6 sizes, from 47 to 61. Stack ranges from 554 to 646 mm and reach from 364 to 397 mm. Its geometry is tall and short, built for comfort. All sizes share 420 mm chainstays. Data from 2026; geometry from 2025, 2022 is also available.

Stack554–646mm

Reach364–397mm

Head angle69.9–70.7°

Chainstay length420mm

Agile rearRelaxed

What size Topstone Carbon do I need?

Enter the stack and reach of a bike that fits you well and we will tell you which size is closest and how to set it up.

Stack in mm Reach in mm Compare on Fitbikefy →

47S 554 · R 364

51S 561 · R 373

54S 579 · R 378

56S 597 · R 383

58S 615 · R 389

61S 646 · R 397

Enter your stack and reach to see which size fits you best.

Geometry chart by size

Measurements in mm and degrees, as published by Cannondale. The ones that matter most for choosing a size are in bold.

Size	47	51	54	56	58	61
Stack	554	561	579	597	615	646
Reach	364	373	378	383	389	397
Effective top tube	532	543	554	564	576	593
Actual top tube	510	520	531	543	557	574
Head tube length	97	101	123	142	164	196
Head angle	69.9°	70.7°	70.7°	70.7°	70.7°	70.7°
Chainstay length	420	420	420	420	420	420
Wheelbase	1,009	1,012	1,026	1,036	1,050	1,069
Front centre	601	605	617	628	641	659
BB drop	79	79	76	76	74	74
BB height	280	280	283	283	285	285
Fork length	429	429	429	429	429	429
Fork offset	55	55	55	55	55	55
Trail	73	67	67	67	67	67
Standover	716	741	772	800	831	864
Seat tube (method not stated)	410	446	482	518	554	590
Seat angle (method not stated)	73.1°	73.1°	73.1°	73.1°	73.1°	73.1°

Source: Cannondale official website · data from 11 Nov 2026.

Stack and reach of every size

Higher means a taller front end; further right means a longer reach. The blue dot is your search.

Character of each size

Compared with other gravel bikes. Further right means more of that quality.

Positionracing → relaxed

Steeringcalm → quick

Pedallingrearward → forward

Bottom brackethigh → low

Wheelbaselively → planted

Rear endstable → agile

Bikes with similar geometry (size 54)

The closest size of other gravel models, by stack and reach.

ModelΔ stackΔ reach

Cannondale Topstone CAAD · 542027±0 mm±0 mmCompare →

Specialized S-Works Diverge · 522026−1 mm−4 mmCompare →

Specialized Diverge · 522026−1 mm−4 mmCompare →

KTM Gravelator · XS2027−2 mm−4 mmCompare →

Wilier Triestina Jena · M2026+3 mm+4 mmCompare →

Pinarello DOGMA GR · 4852026−6 mm+1 mmCompare →

Topstone Carbon or Topstone CAAD? In size 54 they have exactly the same stack and reach (579 / 378 mm): the difference is in the frame and build, not the position.

Frequently asked questions

What size Topstone Carbon do I need?

It depends on your position, not just your height. The most reliable way is to compare the stack and reach of a bike that fits you with those of each size (from 554/364 mm in size 47 to 646/397 mm in size 61). The size finder on this page shows the closest size and the stem and spacers you would need.

What are the stack and reach of the Topstone Carbon in size 54?

Stack of 579 mm and reach of 378 mm, with an effective top tube of 554 mm and a head angle of 70.7°.

Is the Topstone Carbon a racing or an endurance bike?

Endurance. In size 54 its stack-to-reach ratio is at percentile 85 of gravel bikes: a tall, short position.

Does it have the same geometry as the Topstone CAAD?

In size 54, yes: same stack and reach. If one already fits you, the same size of the other will put you in the same position.