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With generous tyre capacity, ample gear mounts, stable yet agile steering and a light frame with a supple carbon fork, this bike will let you ride further, over rougher ground, with confidence.
With generous tyre capacity, ample gear mounts, stable yet agile steering and a light frame with a supple carbon fork, this bike will let you ride further, over rougher ground, with confidence.
Cannondale

Cannondale Topstone 1 Gravel Bike in Obsidian

£2,150.00
Size Guide
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Estimated Delivery & Collection Dates

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The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
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Cannondale Topstone 1 Gravel Bike in Obsidian

Season:2025

Brand:Cannondale

Code:CANC15603UObsidian

With generous tyre capacity, ample gear mounts, stable yet agile steering and a light frame with a supple carbon fork, this bike will let you ride further, over rougher ground, with confidence.

Thrives on mixed roads, rough gravel, the road less travelled.

Built for commuting or exploring, offering a comfortable and controlled yet lively ride on mixed surfaces.
Technical Information
  • Platform
    Topstone Alloy
  • Model Name
    Topstone 1
  • Model Code
    C15602U
  • Frame
    Topstone, lightweight SmartForm C2 Alloy, 12x142 thru-axle, tapered headtube, BSA threaded BBm flat mount disc, StraightShot internal cable routing, multiple gear/bottle mounts
  • Fork
    Topstone Carbon, 1-1/8" to 1.5" steerer, 55mm OutFront offset, flat mount disc, internal routing, 12x100 thru-axle, fender/gear mounts
  • Headset
    Integrated, 1-1/8" - 1.5"
  • Rear Derailleur
    Shimano GRX 810, Shadow RD+
  • Front Derailleur
    Shimano GRX 800
  • Shifters
    Shimano GRX 600, 11-speed
  • Chain
    KMC X11, 11-speed
  • Crank
    FSA Gossamer Pro Modular AGX+, 46/30
  • Rear Cogs
    Shimano 105, 11-34, 11-speed
  • Bottom Bracket
    FSA BB386 MegaEvo
  • Brakes
    Shimano GRX 400 hydraulic disc, 160/160mm RT54 rotors
  • Brake Levers
    Shimano GRX 600 hydraulic disc
  • Rims
    WTB ST i23 TCS, 28h, tubeless ready
  • Spokes
    Stainless Steel, 14g
  • Tire Size
    37
  • Wheel Size
    700c
  • Hubs
    (F) Formula cartridge bearing, 12x100mm centerlock / (R) Formula cartridge bearing, 12x142mm centerlock
  • Tires
    WTB Riddler TCS Light, 700x37c, tubeless ready (Europe/UK - Vittoria Terreno Dry, 700x35c, foldable)
  • Front Tire
    WTB Riddler TCS Light, 700x37c, tubeless ready (Europe/UK - Vittoria Terreno Dry, 700x35c, foldable)
  • Rear Tire
    WTB Riddler TCS Light, 700x37c, tubeless ready (Europe/UK - Vittoria Terreno Dry, 700x35c, foldable)
  • Handlebar
    Cannondale 3, butted 6061 Alloy, 16 deg flare drop
  • Stem
    Cannondale 3, 6061 Alloy, 31.8, 7°
  • Grips
    Cannondale Bar Tape, 3.5mm
  • Saddle
    Fizik Aliante Delta, S-alloy rails
  • Seatpost
    Cannondale 3, 6061 Alloy, 27.2x350mm
  • Extra 1
    Removable fender bridge
Sizing Information
Road/Gravel Bikes

Rider Height (ft/in)Rider Height (cm)Bike Size
4'10" - 5'0"147 - 15244 - 47 cm
5'0" - 5'3"152 - 16047 - 51 cm
5'3" - 5'6"160 - 16851 - 54 cm
5'6" - 5'9"168 - 17554 - 56 cm
5'9" - 6'0"175 - 18356 - 58 cm
6'0" - 6'3"183 - 19158 - 61 cm
6'3" - 6'6"191 - 19861 - 63 cm

Mountain/Leisure Bikes

Rider Height (ft/in)Rider Height (cm)Bike Size
4'0" - 4'9"122 - 145XXS (12-13"), XS (13-14")
4'9" - 5'2"145 - 157XS (13-14"), S (14-15")
5'2" - 5'6"157 - 168S (14-15"), M (15-17")
5'6" - 5'10"168 - 178M (15-17"), L (17-18")
5'10" - 6'1"178 - 185L (17-18"), XL (18-20")
6'1" - 6'4"185 - 193XL (18-20"), XXL (20-22")
6'4" and above193+XXL (20-22")


Please note that this is just a general guide and you may need to check the specific model on the Cannondale website. Additionally, different models of Cannondale bikes may have slightly different sizing recommendations, so be sure to check the specific size charts for the model you're interested in.
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