Bicycle Archive · Specification report

2020 Cannondale Topstone Carbon Ultegra RX 2

Velopedia Archive ID 900002659

Overview

Model year	2020
Brand	Cannondale
Model	Topstone Carbon Ultegra RX 2
Bicycle type	Cyclocross/Gravel
Archive ID	900002659
Colors	Agave (AGV)
Sizes	XS, S, M, L, XL

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 · XS

Seat tube	410 mm
Effective top tube	525 mm
Head tube	97 mm
Head-tube angle	70°
Seat-tube angle	73.1°
Chainstay / rear center	415 mm
Wheelbase	999 mm
Bottom-bracket drop	69 mm
Bottom-bracket height	273 mm
Reach	368 mm
Stack	518 mm
Standover height	715 mm
Fork offset / rake	55 mm
Front center	594 mm
Trail	66 mm

Geometry · SM

Seat tube	458 mm
Effective top tube	544 mm
Head tube	131 mm
Head-tube angle	71.2°
Seat-tube angle	73.1°
Chainstay / rear center	415 mm
Wheelbase	1010 mm
Bottom-bracket drop	64 mm
Bottom-bracket height	278 mm
Reach	377 mm
Stack	549 mm
Standover height	761 mm
Fork offset / rake	55 mm
Front center	604 mm
Trail	58 mm

Geometry · MD

Seat tube	505 mm
Effective top tube	561 mm
Head tube	165 mm
Head-tube angle	71.2°
Seat-tube angle	73.1°
Chainstay / rear center	415 mm
Wheelbase	1030 mm
Bottom-bracket drop	61 mm
Bottom-bracket height	280 mm
Reach	385 mm
Stack	579 mm
Standover height	803 mm
Fork offset / rake	55 mm
Front center	623 mm
Trail	58 mm

Geometry · LG

Seat tube	553 mm
Effective top tube	579 mm
Head tube	198 mm
Head-tube angle	71.2°
Seat-tube angle	73.1°
Chainstay / rear center	415 mm
Wheelbase	1040 mm
Bottom-bracket drop	61 mm
Bottom-bracket height	280 mm
Reach	394 mm
Stack	610 mm
Standover height	843 mm
Fork offset / rake	55 mm
Front center	642 mm
Trail	58 mm

Geometry · XL

Seat tube	600 mm
Effective top tube	596 mm
Head tube	232 mm
Head-tube angle	71.2°
Seat-tube angle	73.1°
Chainstay / rear center	415 mm
Wheelbase	1060 mm
Bottom-bracket drop	59 mm
Bottom-bracket height	283 mm
Reach	402 mm
Stack	640 mm
Standover height	885 mm
Fork offset / rake	55 mm
Front center	660 mm
Trail	58 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 7, 2026.