Cannondale Topstone Carbon 4 CUES 1x Bike
Go beyond the pavement's end with this Cannondale gravel bike. It features a bump-absorbing KingPin carbon frame. And it has Shimano CUES U6000 1 x 11-speed shifting and CUES hydraulic disc brakes.
Key Details
- This bike is designed for gravel riding and racing, bikepacking, singletrack exploration and getting after it beyond the pavement's end
- Lightweight full carbon frameset
- Durable, reliable, wide-range, 1 x 11-speed shifting with the Shimano CUES U6000 group
- Powerful, controllable braking from Shimano CUES hydraulic disc brakes
- KingPin innovative gravel rear suspension is light, simple and effective
- Maintenance-free and complexity-free, KingPin gives the Topstone frame legit rear-wheel travel without compromising stiffness for the sprint
- A thru-axle pivot in the seat tube allows the rear triangle and seatpost of the bike to flex vertically, delivering up to 30 mm of bump-smoothing travel
- Durable, dependable WTB ST i25 rims, with Shimano hubs and WTB Riddler 42 mm tubeless-ready gravel tires
- Proportional Response size-specific construction creates optimal stiffness and compliance for each frame size so every rider has the ideal ride feel and comfort of KingPin
- Everything from the carbon layup to the geometry on the Topstone is individually tuned by frame size
- OutFront steering Geometry features an extra-long fork offset paired with a slack head angle to keep the steering light and lively; delivers confidence at speed
- Cannondale 3 flared handlebar offers comfortable, gravel-friendly hand positions
- StashPort storage system in the down tube is designed to be concealed yet convenient; accessed beneath the water bottle cage
- Paired with the special StashBag (included), the StashPort storage system lets you bring your essentials along for the ride and know that they'll be kept secure
- Multiple mounting points on the frame mean more gear and more adventures
- The frame fits tires up to 52 mm wide with a single ring setup, or 50 mm for a 2x, while the fork fits up to a whopping 56 mm wide tire
- Dropper ready; built to accept an internally routed 27.2 mm dropper seatpost (not included)
- Internal cable routing throughout the frame, combined with Conceal Stem, delivers a tidy, integrated look
- Pedals not included
- NOTE: Specs and images are subject to change based on component availability
Imported.
- 1 year of free adjustments (see more below)
- In-store bike assembly
- Pickup in store or curbside
- Bike experts available at 170+ bike shops
- 20% off shop services
- Free tubes with purchase of flat tire repair (Co-op Cycles brand tubes only; tube must be installed at time of purchase)
New bikes go through a normal break-in period, after which they should be readjusted. All bicycles sold at REI include free adjustments for one year after purchase date—as many times as you need. Included: derailleur and brake adjustments, lateral wheel truing, hub and headset bearing adjustments, tire inflation and chain lubrication. Not included: replacement or installation of new components or accessories, any other services. Call your local REI Co-op Bike Shop for more information.
| Best Use | Gravel Cycling |
|---|---|
| Frame | Topstone Carbon, KingPin suspension system, Proportional Response construction, downtube StashPort, internal cable routing, 12x142 mm thru axle, UDH, BSA 68 mm threaded BB, flat mount disc |
| Bike Suspension | No Suspension |
| Fork | Topstone Carbon, 1-1/8 in. to 1.5 in. steerer, 55 mm OutFront offset, flat mount disc, internal routing, 12 x 100 thru axle, triple bottle/gear mounts, fender mounts |
| Crankset | Shimano CUES 6030, 40T: 165 mm (47 cm), 170 mm (51 cm), 172.5 mm (54-56 cm), 175 mm (58-61 cm) |
| Bottom Bracket | Shimano BSA 68 |
| Shifters | Shimano CUES U6030, 11-speed |
| Front Derailleur | N/A |
| Rear Derailleur | Shimano CUES U6000, Shadow RD+, 11-speed |
| Rear Cogs | Shimano CUES LG400, 11-50, 11-speed |
| Number of Gears | 11 gear(s) |
| Brake Type | Hydraulic Disc Brake |
| Brakes | Shimano CUES RS405 hydraulic disc, 160/160 mm RT30 rotors |
| Brake Levers | Shimano CUES U6030 hydraulic disc |
| Rims | WTB ST i25 TCS, 28h, tubeless ready |
| Front Hub | Shimano TC500, centerlock 12 x 100mm |
| Rear Hub | Shimano TC500, centerlock 12 x 142 mm |
| Wheel Size | 700c |
| Tires | WTB Riddler TCS Light, 700c x 45 mm, tubeless ready |
| Tire Width | 45 millimeters |
| Handlebar Shape | Drop Bar |
| Handlebar | Cannondale 3, butted 6061 alloy, 16° flare, 120 mm drop: 400 mm (47cm), 420 mm (51-54), 440 mm (56-61cm) |
| Stem | Cannondale 3, 6061 alloy, 31.8, 7°: 70 mm (47-51m), 80 mm (54cm), 90 mm (56-58cm), 100 mm (61cm) |
| Seat Post | Cannondale 3, 6061 alloy, 27.2 x 350 mm |
| Saddle | Selle Royal SRX Open, 148 mm |
| Pedals | Not included |
| Headset | Acros IS52/40 ICR |
| Chain | Shimano LG500, LinkGlide, 11-speed |
| Weight | Unavailable |
| Gender | Unisex |
| 51 CM | 54 CM | 56 CM | 58 CM | 61 CM | |
|---|---|---|---|---|---|
| Height Range | 5'5''-5'9'' | 5'8'-5'11'' | 5'10''-6'1'' | 6'0''-6'4'' | 6'3''-6'7'' |
| Reach | 37.3 | 37.8 | 38.3 | 38.9 | 39.7 |
| Stack | 56.1 | 57.9 | 59.7 | 61.5 | 64.6 |
| Effective Top Tube | 52 | 53.1 | 54.3 | 55.7 | 57.4 |
| Seat Tube Center-Top | 44.6 | 48.2 | 51.8 | 55.4 | 59 |
| Standover Height | 74.1 | 77.2 | 80 | 83.1 | 86.4 |
| Head Tube Length | 10.1 | 12.3 | 14.2 | 16.4 | 19.6 |
| Head Tube Angle (degrees) | 70.7 | 70.7 | 70.7 | 70.7 | 70.7 |
| Seat Tube Angle (degrees) | 73.1 | 73.1 | 73.1 | 73.1 | 73.1 |
| Bottom Bracket Height | 28 | 28.3 | 28.3 | 28.5 | 28.5 |
| Wheelbase | 101.2 | 102.6 | 103.6 | 105 | 106.9 |
| Chainstay | 42 | 42 | 42 | 42 | 42 |
Sizing Notes
Measurements are stated in centimeters unless otherwise indicated.
How we measure bikes
- Standover Height Standover Height is a measurement from the ground to the top of the top tube, measured at the midpoint of the top tube.
- Reach Reach is the horizontal distance from the center of the cranks to the center of the head tube, measured at head tube level.
- Stack Stack is the vertical distance from the center of the cranks to the center of the head tube, measured to the top of the head tube.
- Effective Top Tube Effective top tube is the distance from the center of the head tube to the center of the seat tube/seat post, measured parallel to the ground.
- Seat Tube Center to Top Seat Tube length is the measurement of the seat tube, from the center of the cranks to the top of the seat tube.
- Head Tube Length Head Tube Length is measured from the bottom to the top of the head tube.
- Head Tube Angle Head Tube Angle is the acute angle between the head tube and the ground (measured towards the rear of the bike)
- Seat Tube Angle Seat Tube Angle is the acute angle between the seat tube and the ground (measured towards the rear of the bike).
- Bottom Bracket Height Bottom Bracket Height is a measurement taken vertically from the ground up to the center of the cranks.
- Wheelbase Wheelbase is the measurement from the center of the front axle to the center of the rear axle.
- Chainstay Length Chainstay Length is the measurement from the center of the cranks to the center of the rear axle.
- Fork Offset Fork Offset, or rake, is the distance from the front axle to a line drawn parallel to the center of the head tube or steering axis.
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Doesn't live up to Cannondale hype
I just returned the Cannondale Topstone Carbon 4 CUES 1x for a refund. I did three rides on this new bike. Varied terrain (pavement, trail, gravel trail, grassy parkland). I am mostly disappointed. Others might find this is good for what they want. A couple of positives: 1. The gearing is good for 11%+ grade. 2. Very stable at low speeds, easier track-stand. BUT, especially compared with my existing cross bike: 1. The promised shock absorption wasn’t there (REI and Cannondale say, “It features a bump-absorbing KingPin carbon frame.” “every rider has the ideal ride feel and comfort of KingPin” “Carbon: More vibration-absorbing ride”). It chattered my teeth even on grass in the park, worse elsewhere. I found myself out of the saddle using my legs as shock absorbers too much. 2. Related to shock absorption, while it was stable at low speeds, it was more unstable at higher speed, bouncing around the terrain. Consequently, acute turns were difficult. 3. I didn’t get better traction either flat or hilly. (Cannondale says, “Tires are treaded or knobby for durability and traction”). 4. The 11 speed design must be flawed (or the cassette). I had chain “chatter” in both 1st and 11th gears. Dialing the shifter tension up or down would just increase the chatter at either end. Most of these problems might be due to the weight distribution; the rear is much, much heavier than the front.

