Cannondale  Topstone Disc SE 105 Bike - 2019

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Born to roll and roam with pure gravel goodness, the Cannondale Topstone Disc SE 105 bike has high-volume tires, confident rider position and sporty handling to smash out big miles on the back roads.

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Features

  • Clean internal routing lets you add a 27.2mm dropper post (not included)
  • Removable fender bridge bolts on when you want fenders
  • Mounts for 3 water bottles and top-tube storage let you prepare to go long; multiple bottle cage positions on the down tube mount let you attach big frame bags
  • SmartForm C2 alloy construction delivers a frame that's lightweight, efficient and oh-so-smooth
  • Big tire clearance provides plenty of room for tires up to 42mm wide
  • Full carbon fork with tapered steerer and 12mm thru-axle creates a light, comfortable and precise-steering front end
  • OutFront steering geometry sports a slack head angle and 55mm fork rake for stability at speed, agility on mixed surfaces and confidence on multiday adventures
  • Pedals not included
  • NOTE: Specs and images are subject to change based on component availability

Imported.

This bike comes with Coast to Coast Support, which includes:
  • 1 year of free adjustments (see more below)
  • In-store bike assembly
  • Pickup in store or curbside
  • Bike experts available at 170+ bike shops
REI Co-op Members get more:
  • 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)
More about our free adjustments:
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.

View the Cannondale Topstone Product LineView all Cannondale

Technical Specs

Best Use

Cycling

Frame

SmartForm C2 alloy

Fork

Cannondale Topstone disc, full carbon, 1-1/4 to 1-1/8 in. tapered steerer, 55mm offset, flat mount, 12 x 100 thru axle

Bike Suspension

No Suspension

Crankset

FSA Omega ME alloy, 46/30

Bottom Bracket

FSA MegaExo

Shifters

Cannondale C3, butted 6061 alloy, 16° flare drop

Front Derailleur

Shimano 105, 31.8 clamp

Rear Derailleur

Shimano 105 7000 GS

Rear Cogs

Shimano 105, 11-34, 11-speed

Number of Gears

22 gear(s)

Brake Type

Hydraulic Disc Brake

Brakes

Shimano 105 7070 hydraulic disc, 160/160mm RT56 rotors

Brake Levers

Shimano 105 7020 hydraulic disc

Rims

WTB ST i23 TCS, 28h, tubeless-ready

Front Hub

Formula RX-512 12 x 100

Rear Hub

RX-142 12 x 142

Wheel Size

700c

Tires

WTB Nano TCS, 700 x 40c, tubeless-ready

Tire Width

40 millimeters

Handlebar Shape

Drop Bar

Handlebar

Cannondale C3, butted 6061 alloy, 16° flare drop

Stem

Cannondale C3, 6061 alloy, 31.8, 7°

Seat Post

Cannondale C3, 6061 alloy, 27.2 x 350mm

Saddle

Fabric Scoop Radius Sport, steel rails

Pedals

Sold separately

Headset

Topstone Si, 25mm alloy top cap

Chain

KMC X11EL, 11-speed

Weight

21 lbs. 14.56 oz.

Bike Weight

Bike weight is based on median size, as sold, or the average of two median sizes.

Gender

Unisex

Size Chart

Cannondale Bikes (145825)
XSSMLXL
Reach36.837.738.539.440.2
Stack51.854.957.96164
Effective Top Tube52.554.456.157.959.6
Seat Tube Center-Top4145.850.555.360
Standover Height70.374.478.482.586.3
Head Tube Length8.911.814.918.221.4
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 Height28.428.428.428.428.4
Wheelbase101.1102.2104106107.8
Chainstay4343434343
Fork Offset5.55.55.55.55.5

Sizing Notes

Measurements are stated in centimeters unless otherwise indicated.

How we measure bikes

  1. 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.
  2. Reach Reach is the horizontal distance from the center of the cranks to the center of the head tube, measured at head tube level.
  3. 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.
  4. 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.
  5. 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.
  6. Head Tube Length Head Tube Length is measured from the bottom to the top of the head tube.
  7. Head Tube Angle Head Tube Angle is the acute angle between the head tube and the ground (measured towards the rear of the bike)
  8. Seat Tube Angle Seat Tube Angle is the acute angle between the seat tube and the ground (measured towards the rear of the bike).
  9. Bottom Bracket Height Bottom Bracket Height is a measurement taken vertically from the ground up to the center of the cranks.
  10. Wheelbase Wheelbase is the measurement from the center of the front axle to the center of the rear axle.
  11. Chainstay Length Chainstay Length is the measurement from the center of the cranks to the center of the rear axle.
  12. 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.

Reviews
9 reviews with an average rating of 4.1 out of 5 stars

Ratings Snapshot

Product Rating

7 out of 9 (78%) reviewers recommend this product

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Customer Images

Petr
San Diego, CA
Rated 5.0 out of 5 stars

Awesome bike for a great price

6 years ago

I've had my Topstone for almost three months now. I literally can't wait for the weekends to come. I've been enjoying the bike on the road, as well as off road (single track, trails, fire roads). The ride is very smooth and a lot can be adjusted by the tire pressure. The black frame paint gets dirty relatively easily since I ride in sandy and dirty conditions. Very happy with the manufacturer's equipment and overall performance so far. The 105 groupset is great. I'm happy I went with the two-by since 30-40% I'm on paved roads. The 46-30 chainrings are just what I needed - never had a problem with the gearing range. Even with its wide OEM 700x40 tires and a relatively heavy setup I'm able to keep up with the the average riders on road bikes. I'm 6'2" and the L size fits great. It's not too aggressive in geometry. I have no problems riding for 4-5 hours. The guys at REI did a great job with the initial tune up but I'll bring it in after summer for the recommended checkup.

Yes , I recommend this product
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Danny
Santa Clarita, Ca
Rated 5.0 out of 5 stars

All day, all surface, all condition, all good

6 years ago

After 6 months I absolutely love this bike. I usually end up selling road bikes after a few months because I have the tendency to leave the pavement and hit dirt (fire roads, gravel, double track, etc.). But this bike is exactly what I've been wanting in a drop bar road bike for many years- and I've found it. I am 5-09, and I ride a size M- perfect fit. I usually start changing parts out after the 1st or 2nd ride but so far, I am completely happy with all of the OEM parts. My 1st ride was a 25 mile loop on fire roads in the Angeles National Forest with light rain, and a couple of hike-a-bike sections. The bike handled the terrain without a problem and was light enough to carry on the hiking sections without wearing me out.

Yes , I recommend this product
Helpful?
GravelRider27
Rated 5.0 out of 5 stars

So much bike for the price

6 years ago

I always like to wait until I’ve put a bike through a thorough test before writing a review. Among other rides, I’ve done 3 century gravel rides 2 of which having over 6,000 ft of climbing, single track and minimum maintenance roads. I can say confidently this bike has superseded all expectations. The geometry of the bike gives it a sturdy, comfortable, yet aggressive feel, the Shimano 105 has been able to withstand some fairly brutal riding. The inexpensive WTB tires have performed much better than I thought. The stock 40mm wide tires (tubeless setup) float over gravel, dirt and provide more traction and comfort than I imagined. To keep the price down. Cannondale have opted for cheaper wheels and crankset. When I bought the bike I assumed I’d be replacing both within a month. However I’ve been pleasantly surprised at the durability thus far of the relatively cheap parts. One of the best parts of this bike, is my ability to swap out a set of road wheels and use it on training rides. I cannot underestimate how great this bike has performed so far

Yes , I recommend this product
Helpful?
softreset
Roseville, CA
Rated 5.0 out of 5 stars

An amazing build at a great price!

5 years ago

- Carbon fork & carbon steerer tube? Yes. - Tubeless ready wheels & tires? Yes. - Full 105 R7000 hydraulic? Yes. - Gearing that makes sense for a bike that's designed to be ridden by mortals who don't stare at their 3 second power in a full matching kit? Yes. Everything about this bike makes sense for someone who's looking for that "one bike" and doesn't want to break the bank. With an acceptable geometry balance between steady and fast, this bike really is built to have fun no matter where or how you ride.

Yes , I recommend this product
Helpful?
Jake0521
Oregon Coast
Rated 4.0 out of 5 stars

Great Bike, Awesome Tires...Terrible Wheels

5 years ago

The bike is awesome, comfortable but quick, handles really well and absorbs the bumps with ease. The WTB Nanos are perfect; Fast on the pavement but grippy on gravel, decent in mud. The 105 groupset is great with all the gear range most people will ever need. Braking power is excellent. But the wheels are awful. Plain and simple. The Formula hubs are straight garbage, the bearings spin like they've been crushed. The wheels were way out of true after the first ride. I've had the wheels trued at bike shops twice and they still can't make a 30 mile ride without getting all out of whack. The "tubeless ready" rims simply are not ready for tubeless. The tape wasn't installed correctly (no overlap) and the valve stems took some sanding before it would make a tight seal in the rim. In short, its a great bike but plan on quickly dropping 400+ on a decent set of wheels.

Yes , I recommend this product
Helpful?
Dudleys
Seattle, Wa
Rated 2.0 out of 5 stars

Epic Rear Wheel Failure at 100 miles

6 years ago

I really wanted to love this bike... the rear wheel failed on me at 100 miles. Half the spokes vibrated loose to the point the wheel was unstable and dangerous to ride. Fortunately I had a spoke wrench in my emergency kit to get home with. I had to rebuild the whole wheel twice. On the second attempt I used the weakest purple Loctite, seem to be working so far. I have a tension meter and truing stand. I didn't take it in to REI as this is prime bike bike season. Other than the rear wheel problems, the bike is amazing. The rear wheel was so bad though that I can't recommend this bike. I ride this bike as a commuter on paved and gravel roads. The bike was not abused. It was never taken on trails or off roads.

No, I do not recommend this product
Helpful?
Will
Fremont, CA
Rated 5.0 out of 5 stars

The do it all bike

5 years ago

I've had this bike for a year and I love it! Solid build, great 105 components, sturdy wheels, and the geometry keeps things comfortable while still being responsive. Threaded bottom bracket too, which is harder to come by these days. Only issue I can think of is with the XS size there is slight toe overlap but that's expected at my size. Kind of wish the cranks were 165 mm though. This bike is great for rough roads and gravel, and you can throw a pair of slick tires on and it'll behave like a endurance road bike. Don't care for weight too much but they wheels are quite heavy. I'd imagine you could even get into some racing if you swap out the wheels. Overall, fantastic bike and great looks too :)

Yes , I recommend this product
Helpful?
Dudleys
Seattle
Rated 1.0 out of 5 stars

Rear spokes are a terrible

6 years ago

This bike needs a safety recall. The rear spokes are constantly coming loose after just 100 miles. Carry a spoke tool and apply removable loctite.

No, I do not recommend this product
Helpful?
Saintwicked
Grass Valley
Rated 5.0 out of 5 stars

Fun fun

6 years ago

After many mountain bikes the Topstone 105 is easily my favorite bike. It’s fast and still nimble on single track.

Yes , I recommend this product
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