6.5–30.7 mph at 90 rpm, estimated from the published rear tire size 700×37c · 37-622 ETRTO.
Velopedia Bicycle Archive
2020 Cannondale Topstone Carbon Ultegra RX 2
Original specifications: 700c wheels · geometry for 5 published sizes.
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At a glance
- Model year
- 2020
- Category
- Gravel & Cyclocross
- Sizes
- XS, S, M, L, XL
- Colors
- Agave (AGV)
- Geometry
- 5 manufacturer sizes
- In this record
- 24 specifications · archived image · geometry
- Archive ID
- 900002659
Original buildCarbon · 700c
Frameset
| Frame Construction | All-New, BallisTec Carbon, Kingpin suspension system, Proportional Response size-specific construction, Directline internal cable routing, BB30-83 Ai, 142x12 Speed Release thru-axle, flat-mount disc, removable fender bridge, multiple gear/bottle mounts, dropper post compatible |
|---|---|
| Frame Material | Carbon |
| Fork | All-New, BallisTec Carbon, 55mm OutFront offset, SAVE, 1-1/8” to 1.5” steerer, integrated crown race, Directline internal routing, 12x100mm Speed Release thru-axle, flat mount disc, gear/rack/fender mounts |
| Fork Material | Carbon |
Drivetrain
| Shifters | Shimano Ultegra hydro disc, 2x11 |
|---|---|
| Front Derailleur | Shimano Ultegra, braze-on |
| Rear Derailleur | Shimano Ultegra RX GS Shadow Plus |
| Crankset | Cannondale 1, BB30a, FSA rings, 46/30 |
| Bottom Bracket | Cannondale Alloy PressFit30 |
| Rear Cogs | Shimano 105, 11-34, 11-speed |
| Chain | Shimano HG601, 11-speed |
| Pedals | Not Included |
Brakes
| Brakes | Shimano Ultegra hydro disc, 160/160mm RT54 rotors |
|---|
Cockpit & Contact Points
| Headset | Integrated, 1.5” lower to 1-1/8” upper w/ reducer, 25mm Alloy top cap |
|---|---|
| Handlebar | Cannondale 3, butted 6061 alloy, 16 deg flare drop |
| Stem | Cannondale 2, 6061 alloy, 31.8, 6° |
| Saddle | Fabric Scoop Radius Elite, cro-mo rails |
| Seatpost | Cannondale 2, carbon, 27.2 x 350mm |
Wheels & Tires
| Hubs | (F) Formula CL-712, 12x100 centerlock / (R) Formula RXC-400, 12x142 centerlock |
|---|---|
| Rims | WTB KOM Light i23 TCS, 28h, tubeless ready |
| Spokes | Stainless Steel, 14g (Ai Offset Dish - rear) |
| Front Tire | WTB Riddler TCS Light, 700 x 37c, tubeless ready |
| Rear Tire | WTB Riddler TCS Light, 700 x 37c, tubeless ready |
| Wheel Size | 700c |
Geometry
Frame measurements by size.
Published frame view
Select an available measurement to locate it on the frame.
All geometry measurements5 sizes · 15 measurements
| Measurement | XS | SM | MD | LG | XL |
|---|---|---|---|---|---|
| Seat tube | 410 mm | 458 mm | 505 mm | 553 mm | 600 mm |
| Effective top tube | 525 mm | 544 mm | 561 mm | 579 mm | 596 mm |
| Head tube | 97 mm | 131 mm | 165 mm | 198 mm | 232 mm |
| Head-tube angle | 70° | 71.2° | 71.2° | 71.2° | 71.2° |
| Seat-tube angle | 73.1° | 73.1° | 73.1° | 73.1° | 73.1° |
| Chainstay / rear center | 415 mm | 415 mm | 415 mm | 415 mm | 415 mm |
| Wheelbase | 999 mm | 1010 mm | 1030 mm | 1040 mm | 1060 mm |
| Bottom-bracket drop | 69 mm | 64 mm | 61 mm | 61 mm | 59 mm |
| Bottom-bracket height | 273 mm | 278 mm | 280 mm | 280 mm | 283 mm |
| Reach | 368 mm | 377 mm | 385 mm | 394 mm | 402 mm |
| Stack | 518 mm | 549 mm | 579 mm | 610 mm | 640 mm |
| Standover height | 715 mm | 761 mm | 803 mm | 843 mm | 885 mm |
| Fork offset / rake | 55 mm | 55 mm | 55 mm | 55 mm | 55 mm |
| Front center | 594 mm | 604 mm | 623 mm | 642 mm | 660 mm |
| Trail | 66 mm | 58 mm | 58 mm | 58 mm | 58 mm |
Measurements may vary by configuration, wheel size, or frame setting where noted in the published chart.
Gearing
Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.
Parts & serviceability
Find replacement parts


More parts (6)



Cervelo SP19 Carbon Seatpost Black, 27.2mm, 0mm offset, 350mm long
27.2mm, 0mm offset, 350mm long
Replacement option · verify fit
Based on the original build. Confirm the model, size and fit before ordering; installed parts may differ. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases.
Bike-specific inspection checklist 20 checks based on 5 archived component groups Open checklistClose checklist
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Identity and fit
Follow the full used-bike inspection order →Archived: 2020 Cannondale Topstone Carbon Ultegra RX 2 · Cyclocross/Gravel · Published sizes: XS, S, M, L, XL
Frame and fork
Inspect the frame and fork →Archived: Frame: Carbon · Fork: All-New, BallisTec Carbon, 55mm OutFront offset, SAVE, 1-1/8” to 1.5” steerer, integrated crown race, Directline internal routing, 12x100mm Speed Release thru-axle, flat mount disc, gear/rack/fender mounts · Carbon
Drivetrain
Check drivetrain wear →Archived: Shifters: Shimano Ultegra hydro disc, 2x11 · Front derailleur: Shimano Ultegra, braze-on · Rear derailleur: Shimano Ultegra RX GS Shadow Plus · Crankset: Cannondale 1, BB30a, FSA rings, 46/30 · Bottom bracket: Cannondale Alloy PressFit30 · Rear cogs: Shimano 105, 11-34, 11-speed · Chain: Shimano HG601, 11-speed
Brakes
Inspect the brakes →Archived: Brakes: Shimano Ultegra hydro disc, 160/160mm RT54 rotors
Wheels and tires
Check wheels and tires →Archived: Wheel size: 700c · Rims: WTB KOM Light i23 TCS, 28h, tubeless ready · Hubs: (F) Formula CL-712, 12x100 centerlock / (R) Formula RXC-400, 12x142 centerlock · Front tire: WTB Riddler TCS Light, 700 x 37c, tubeless ready · Rear tire: WTB Riddler TCS Light, 700 x 37c, tubeless ready
Controls and contact points
Archived: Headset: Integrated, 1.5” lower to 1-1/8” upper w/ reducer, 25mm Alloy top cap · Handlebar: Cannondale 3, butted 6061 alloy, 16 deg flare drop · Stem: Cannondale 2, 6061 alloy, 31.8, 6° · Seatpost: Cannondale 2, carbon, 27.2 x 350mm · Saddle: Fabric Scoop Radius Elite, cro-mo rails · Pedals: Not Included
Before and during the test ride
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.





