2021 · CannondaleTopstone Carbon Ultegra RX
A carbon frame gravel bike with high-end components and hydraulic disc brakes.
| MSRP | $4,200 |
|---|---|
| Weight | 18.5 lbs |
| Suspension | Rigid |
| Frame | Carbon |
| Fork | Carbon |
| Wheels | 700c Carbon |
| Drivetrain | 2 × 11 |
| Groupset | Ultegra |
| Brakes | Hydraulic Disc |
For This Bike
2 × 11 — 22 speed
Topstone Carbon Ultegra RX
Similar Bikes
The Topstone Carbon Ultegra RX is easier to ride up hills than similar bikes.
The Topstone Carbon Ultegra RX is geared about the same as similar bikes for riding downhill.
Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more. Learn more →
5'1" – 5'6"
5'4" – 5'9"
5'7" – 6'0"
5'10" – 6'3"
6'0" – 6'5"
🐐 Estimated
Jun 2020
Cannondale's attention to detail on the Topstone is excellent, and they've made some really interesting design choices to stand out in an increasingly-crowded category. Apparently they've succeeded -- the Topstone 105 has been the third most popular bike on all of 99 Spokes this year.
Well balanced
Descends well
Good power transfer
No mount points on the fork
Cheap bottom bracket
Betsy WelchJun 2022
I tested the Topstone with a Lefty Oliver fork while road riding, gravel cycling, and underbiking around Aspen, Colorado.
David KennedyAug 2021
Overall, the Cannondale Topstone Carbon Lefty 3 is a fun bike. Yes, a tad on the heavy side, but with some slight changes could be made lighter. Topstone Carbon Lefty 3...
Dave AtkinsonDec 2020
Fast, light gravel ripper with top-notch equipment and useful suspension tech
Suspension a genuine benefit off road
Fast and fun ride
Dropper and mudguard compatible
Fiddly front wheel removal
Tyres not up to technical stuff
Costs large amounts of money
May 2020
The Cannondale Topstone Carbon Lefty gives them an efficient "full suspension" gravel bike, complete with all-new, 2nd gen Lefty Oliver suspension fork!
James HuangMay 2020
The new Cannondale Topstone Carbon Lefty is basically the same as the standard Topstone Carbon, but now with a suspension fork and a switch to 650b wheels and tires. The changes sound modest on paper but the difference you feel in the saddle is far greater than you might expect, and while that Lefty Oliver […]
Exceptional ride quality front and rear, well-tuned front suspension fork, nimble handling.
Lots of Cannondale quirkiness, heavy.
Patrick FletcherMay 2020
Rather than singling out one area of expertise, the Cannondale Topstone has the ability to adapt to any situation - trails, gravel and pavement dashing included
Ride quality
Ultegra groupset
Overall speed and all-round terrain ability
Wheels could be of better stock
Not tubeless from factory
Paul NormanMay 2020
A fun off-road machine that ticks all the gravel riding boxes, but the low ratios slow progress on tarmac
Quality off road spec and handling
Good tyres
A bit weighty
Exposed cabling under BB
| Frame | 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, 142x12 thru-axle, Tapered headtube, Flat mount disc, StraightShot internal cable routing, Multiple gear/bottle mounts BB Standard: BB30, Press Fit |
|---|---|
| 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 |
| Bottom Bracket | Cannondale Alloy BB30 |
| Headset | Integrated, 1.5" lower to 1-1/8" upper w/ reducer, 25mm Alloy top cap |
| Stem | Cannondale 2, 6061 alloy, 31.8, 6° |
| Handlebar | Cannondale 3, butted 6061 alloy, 16 deg flare drop |
| Saddle | Fabric Scoop Radius Sport, steel rails |
| Seatpost | SAVE Carbon, 27.2 x 350mm (44-56), 400mm (58-63) |
| Grips | Cannondale Grip Bar Tape w/Gel, 3.5mm |
| Rear Derailleur | Shimano Ultegra RX |
|---|---|
| Front Derailleur | Shimano Ultegra, braze-on |
| Crank | HollowGram, BB30a w/ OPI SpideRing, 46/30 |
| Shifters | Shimano Ultegra hydro disc, 2x11 |
| Cassette | Shimano Ultegra, 11-34, 11-speed |
| Chain | Shimano HG601 11-speed |
| Brakes | Shimano Ultegra hydro disc, 160/160mm RT54 rotors |
| Brake Levers | Shimano Ultegra hydro disc |
| Rims | HollowGram 22, 22mm deep, 25mm ID, tubeless ready |
|---|---|
| Spokes | Stainless steel, 14g |
| Front Hub | HollowGram Sealed Bearing, straight pull, 12x100 |
| Rear Hub | HollowGram 142x12 |
| Tires | WTB Riddler TCS Light, 700 x 37c, tubeless ready |