Cannondale Topstone 4 Bike
An amazingly capable gravel road bike, the Cannondale Topstone 4 bikes is built for chasing horizons, exploring routes less traveled or accelerating your commute. Pick your adventure and get pedaling.
Key Details
- Lightweight SmartForm C2 alloy frame with full carbon fork, 12 x 142 thru axle, tapered head tube, flat-mount disc brakes and StraightShot internal cable routing
- Frame features multiple gear/bottle mounts (gear racks and bottle holders not included)
- Carbon fork has a 1-1/8 to 1-1/2 in. tapered steerer, 55 mm OutFront offset, flat mount disc, internal routing, 12 x 100 mm thru axle and fender/gear mounts
- 10-speed drivetrain
- WTB Riddler comp tires
- 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 | SmartForm C2 alloy |
Fork | Carbon, 1-1/8 to 1-1/2 in. steerer, 55 mm OutFront offset |
Bike Suspension | No Suspension |
Crankset | Prowheel, Charm 40T |
Bottom Bracket | Cartridge, square taper, BSA threaded |
Shifters | microSHIFT Advent X |
Rear Derailleur | microSHIFT Advent X |
Rear Cogs | 11-48T, 10-speed |
Number of Gears | 10 gear(s) |
Brake Type | Mechanical Disc Brake |
Brakes | Promax Render R mechanical disc, 160/160 mm rotors |
Brake Levers | microSHIFT Advent X |
Rims | GXD 1.0, 28h |
Front Hub | Formula alloy, 12 x 100 mm |
Rear Hub | Formula alloy, 12 x 142 mm |
Wheel Size | 700c |
Tires | WTB Riddler Comp, 700c x 37 mm |
Tire Width | 37 millimeters |
Handlebar Shape | Drop Bar |
Handlebar | Cannondale 3, butted 6061 alloy, 16 deg. flare drop |
Stem | Cannondale 3, 6061 alloy, 31.8, 7 deg. |
Seat Post | Cannondale 4, 6061 alloy, 27.2 x 350 mm |
Saddle | Cannondale Stage CX |
Pedals | Not included |
Headset | 1-1/8 to 1-1/2 in. |
Chain | KMC X10, 10-speed |
Weight | 23 pounds |
Bike Weight | Bike weight is based on median size, as sold, or the average of two median sizes. |
Gender | Unisex |
XS | S | M | L | XL | |
---|---|---|---|---|---|
Height Range | 5' - 5'5" | 5'4" - 5'9" | 5'7" - 6'1" | 5'11" - 6'4" | 6'3" - 6'8" |
Reach | 36.8 | 37.7 | 38.5 | 39.4 | 40.2 |
Stack | 51.8 | 54.9 | 57.9 | 61 | 64 |
Effective Top Tube | 52.5 | 54.4 | 56.1 | 57.9 | 59.6 |
Seat Tube Center-Top | 41 | 45.8 | 50.5 | 55.3 | 60 |
Standover Height | 70.3 | 74.4 | 78.4 | 82.5 | 86.3 |
Head Tube Length | 8.9 | 11.8 | 14.9 | 18.2 | 21.4 |
Head Tube Angle (degrees) | 70 | 71 | 71 | 71 | 71 |
Seat Tube Angle (degrees) | 73.1 | 73.1 | 73.1 | 73.1 | 73.1 |
Bottom Bracket Height | 28.4 | 28.4 | 28.4 | 28.4 | 28.4 |
Wheelbase | 101.1 | 102.2 | 104 | 106 | 107.8 |
Chainstay | 43 | 43 | 43 | 43 | 43 |
Fork Offset | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 |
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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Cheap components resulting in high maintenance
Bike is a nice smooth ride on pavement but lacks quality components along with poor build from REI. Let me qualify myself as a triathlete of over 25 years with over 50 races and thousands of bike miles. Initially bike was over shifting and the rear derailleur came off on a pavement ride climbing within 1st month . Also brakes had excessive noise. Brought it back to have REI rebuild it. Rode it for 1 year on light gravel and pavement. No single tracks. Both rims excessively were out of true, brakes/rotors prematurely went bad from maybe one ride in rain? Bottom bracket is worn out. How can cannondale design this junk?
great intro gravel bike
I bought this bike a few weeks ago, and have been loving it so far. I am 5'2" and have a hard time finding bikes small enough for me but the XS fits perfectly. It's fast and comfy for road and bike path riding, and has really held it's own for gravel rides so far. The stock tires are a bit skinny for southern Az roads so I will likely upgrade them soon, but so far the stock ones are good enough. The mechanical disk brakes are not the most responsive, but fine for gravel riding and totally great for the price point. Overall a great bike so far for adding in some gravel riding to mostly mountain biking!
It's turned me back into a cyclist!
I love this bike. I have over 800 miles on mine now and it is holding up. I've run it full speed down rough mountain roads loaded with gear without problems. I've upgraded the seat and went to wider tires, 44mm Raddlers. I'll eventually upgrade the bottom bracket and crankset, but for the $ this is an excellent bike, especially for an entry level gravel/touring bike.
Excellent Starter Gravel Bike
I first saw this bike when I was looking at my first bike but decided to get the Cannondale Quick CX 4 to see if I enjoyed cycling in the first place. 2 weeks later I returned that bike and placed an order on this instead. The first thing I noticed is the comparative agility and quickness coming from a plusher hybrid fitness bike in the Quick CX 4 to this “entry-level” gravel bike. The handful of pounds saved makes it much easier to carry and transport in my truck and it is a very enjoyable ride. The “Cannondale 4” drop bar handlebars are very enjoyable and comfortable for long rides. The 10-speed, 1x gearing is sufficient enough to enjoy cruising or bomb down empty roads while being very simple to operate, no comment on how it performs on gravel. My only two complaints would be the saddle and brakes. The saddle being very tough on the bum but that was quickly remedied with cycling liners or shorts. The brakes came out the shop squeaking but I’ll check back in at my local REI or Bike Shop and see how that can be fixed, stopping power isn’t an issue though which is more important. I’m very inexperienced with cycling but I have no complaints at all about this bike after 105 miles. Currently I run a top tube bag from REI, a single bottle cage, and a front/rear Bontrager ION100R combo light set for visibility on all my daily rides. Super excited to add hundreds of more miles along with potential upgrades that are available for this platform. P.S.: For pedals since they aren’t included, I bought a set of Bontrager hybrid flat/SPD pedals from a local bike shop to hold me over while I consider stepping into the “clip less” cycling shoe game.
Looks better than it rides
Needed a solid ride for commutes around the city: without the worry of flats and major discomfort going over poorly maintained roads. This was a good solution. Brakes and shifting are not as smooth and quiet as I’d expect from a new model, I’ll be upgrading some parts to get a more seamless shifting experience.
Very nice, simple entry gravel bike
This ticked the boxes I was looking for when shopping for a bike. I wanted something light, but a carbon frame was out of the budget and I've found the aluminum frame on this to be very easy to load on my roof rack. It's done just fine on the stock tires in gravel and on pavement. On pavement because of the fork geometry it can sometimes feel like the front end wants to turn sharper than you'd think. Coming from hydraulic brakes on my mountain bike, there was a bit of a learning curve with the brakes on this, but I have found the mechanical discs to give me the stopping power I need. I am partial to 1x's so I enjoy the simplicity of the drivetrain on the Topstone 4, and I've not yet ran into issues with not having the right gear to be in.
Tour de Bucks County
Out the door and took it 15 miles no problem. Climbed a total of 1200 feet, no problem. Solid gravel bike, can’t beat the price. Team at REI Conshahocken was even better. Thank you!
Beautiful bike, good ride
Great bike for the price imo. Noisy brakes and not the strongest in braking power so would probably upgrade at some point but just fine for now. Recreational rider fairly new to gravel riding making a switch from strictly road. I'm waiting to shorten the stem slightly since i have a shorter torso and would like a slightly shorter reach however this is very comfortable from road cycling position that I'm used to. Beautiful looking bike and love the matte black finish.
Good bike but a bad experience
I saw this bike online and went to see it in the store. The sales person said I have your size in a medium that was returned and is almost new and it’s at a discount. Turns out the discount was applicable to this model whether new or not. I put aside my misgivings and paid the new bike price for a used bike. I’m sure it’s a great bike but it wasn’t nearly new judging by how it performed. Loud front brakes are a common problem on this model. Also the shifting wasn’t “new bike” smooth. I took it back and the manager was offended I was returning the used bike I paid the new bike price for. I hate returning anything but in this case I felt it was entirely justified and I’m more than a little perturbed at the treatment I received. I bought a comparable bike from another manufacturer and I’m very pleased I did so. I’ll continue to shop REI but I’ll never by a returned item there again.
it’s my first bike and I love it
I’ve been wanting to get into cycling for a little over a year now. I’ve been eyeing this bike and pulled the trigger. It’s beautiful and ride great for me!