2021 Cannondale Topstone Tiagra

An aluminum frame gravel bike with mid-range components and hydraulic disc brakes.

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2021 Cannondale Topstone Tiagra
Weight22.0 lbs
FrameAluminum
ForkCarbon
Wheels700c
Tires37c
Drivetrain2 × 10
GroupsetTiagra, FSA
BrakesHydraulic Disc
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Gearing

2 × 10 — 20 speed

Topstone Tiagra

36 mph

Similar Bikes

36 mph

The Topstone Tiagra is easier to ride up hills than similar bikes.

The Topstone Tiagra is geared about the same as similar bikes for riding downhill.


Reviews

June 29, 2020

99 Spokes
2020 Cannondale Topstone 105

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.

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May 2021

BikeRadar
Cannondale Topstone Carbon Lefty 1 review

Immensely capable gravel machine that will take you further off the beaten track than ever

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February 2021

Cyclist
Cannondale Topstone Lefty 1 review

Great fun to take almost anywhere off-road, but lacks overall versatility that defines a true gravel bike

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August 2021

Road Bike Action
2021 CANNONDALE TOPSTONE CARBON LEFTY 3 GRAVEL BIKE REVIEW

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...

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May 2020

Gran Fondo
Cannondale Topstone Carbon Lefty 1 2021 first ride review – gravelling on cloud 9?

Cannondale have equipped their Topstone platform with a suspension fork for the new Topstone Carbon Lefty 1. Can this scintillating bike convince us on the trails and do small 650B wheels make sense on gravel? Find all the details and our first ride review here.

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December 2020

road.cc
Cannondale Topstone Carbon Lefty 1

Fast, light gravel ripper with top-notch equipment and useful suspension tech

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September 2020

Cycling Weekly
Cannondale Topstone Lefty 3

Tons of fun - though we'd like a little more tyre clearance for techy trails, please

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May 2020

Bikerumor
Cannondale Topstone Carbon Lefty (finally) adds next-gen Oliver v2 front suspension

The Cannondale Topstone Carbon Lefty gives them an efficient "full suspension" gravel bike, complete with all-new, 2nd gen Lefty Oliver suspension fork!

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Geometry

Specs
Build
Frame

SmartForm C2 Alloy, 142x12 thru-axle, tapered headtube, flat mount disc, StraightShot internal cable routing, multiple gear/bottle mounts, 142x12 thru-axle, Tapered headtube, Flat mount disc, StraightShot internal cable routing, Multiple gear/bottle mounts

Fork

Full Carbon, 1-1/8" to 1-1/4" steerer, 55mm OutFront offset, flat mount disc, internal routing, 12x100 thru axle

Bottom Bracket

FSA Cartridge

Headset

Topstone Si, 25mm Alloy top cap

Stem

Cannondale 3, 6061 alloy, 7°

Handlebar

Cannondale 3, butted 6061 alloy, 16 deg flare drop

Saddle

Fabric Scoop Radius Sport, steel rails

Seatpost

Cannondale C3, 6061 Alloy, 27.2 x 350mm (44-56), 400mm (58-63)

Grips

Cannondale Grip Bar Tape w/Gel, 3.5mm

Groupset
Rear Derailleur

Shimano Tiagra GS

Front Derailleur

Shimano Tiagra braze-on

Crank

FSA Omega ME Alloy, 46/30

Shifters

Shimano Tiagra hydro disc, 2x10

Cassette

Shimano HG500, 11-34, 10-speed

Chain

KMC X10, 10-speed

Brakes

Shimano Tiagra hydro disc, 160/160mm RT54 rotors

Brake Levers

Shimano Tiagra hydro disc

Wheels
Rims

WTB ST i23 TCS, 28h, tubeless ready

Spokes

Stainless steel, 14g

Front Hub

Formula CL-712, 12x100 centerlock

Rear Hub

Formula RXC-400

Tires

WTB Riddler TCS Light, 700 x 37c, tubeless ready

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