Cannondale Topstone 1 Alloy Bike

Features

• SmartForm C2 Alloy construction and full carbon fork are lightweight, durable and high-performance
• Gravel-specific Shimano GRX 800/600 11-speed shifting and Shimano GRX 400 hydraulic disc brakes offer excellent performance for rides that go beyond the pavement
• Balanced riding position is upright enough for comfort over the long haul and control on technical terrain, yet still low and forward enough for speedy efficiency
• 700c x 38 mm wide tires deliver comfort, grip and adventurous capability
• Mounts for 3 water bottles, plus mounts for top tube storage; multiple bottle cage positions on the downtube mount let you configure for big frame bags
• StraightShot internal cable routing; flat-mount disc
• Pedals not included
• Specs and images are subject to change

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:

• Free flat tire repairs (labor only; parts not included)
• 20% off shop services

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 Gravel Bikes

Technical Specs

Best Use

Frame

Fork

Bike Suspension

Crankset

Bottom Bracket

Shifters

Front Derailleur

Rear Derailleur

Rear Cogs

Number of Gears

Brake Type

Brakes

Brake Levers

Rims

Front Hub

Rear Hub

Wheel Size

Tires

Tire Width

Handlebar Shape

Handlebar

Stem

Seat Post

Saddle

Pedals

Headset

Chain

Weight

Bike Weight

Gender

Gravel Cycling Road Cycling

SmartForm C2 Alloy

Carbon, 1-1/8 to 1-1/4 in. steerer, 55 mm OutFront offset

No Suspension

FSA Omega AGX+ alloy, 46/30T

FSA cartridge

Shimano GRX 600, 11-speed

Shimano GRX 800, braze-on

Shimano GRX 810, Shadow RD+

Shimano 105 11-speed, 11-34T

22 gear(s)

Hydraulic Disc Brake

Shimano GRX 400, hydraulic disc, 160/160 mm RT54 rotors

Shimano GRX 600 hydraulic disc

WTB ST i23 TCS, 28h

Formula cartridge bearing, 12 x 100 mm, thru axle, Centerlock disc

Formula cartridge bearing, 12 x 142 mm thru axle, Centerlock disc

700c

Vittoria Terreno Zero, 700c x 38 mm

38 millimeters

Drop Bar

Cannondale 3, butted 6061 alloy, 16 deg. flare

Cannondale 3, 6061 alloy, 31.8 mm , 7 deg.

Cannondale 3, 6061 alloy, 27.2 x 350 mm

Fabric Scoop Radius Sport, steel rails

Not included

1-1/8 to 1-1/4 in. tapered

KMC X11, 11-speed

22 lbs. 9.6 oz.

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

Unisex

Size Chart

XSSMLXLHeight Range

Reach

Stack

Effective Top Tube

Seat Tube Center-Top

Standover Height

Head Tube Length

Head Tube Angle (degrees)

Seat Tube Angle (degrees)

Bottom Bracket Height

Wheelbase

Chainstay

Fork Offset

5’0″ – 5’5″	5’4″ – 5’9″	5’7″ – 6’1″	5’11” – 6’4″	6’3″ – 6’8″
36.8	37.7	38.5	39.4	40.2
51.8	54.9	57.9	61.0	64.0
52.5	54.4	56.1	57.9	59.6
41.0	45.8	50.5	55.3	60.0
70.3	74.4	78.4	82.5	86.3
8.9	11.8	14.9	18.2	21.4
70	71	71	71	71
73.1	73.1	73.1	73.1	73.1
7.5	7.5	7.5	7.5	7.5
101.1	102.2	104.0	106.0	107.8
43.0	43.0	43.0	43.0	43.0
5.5	5.5	5.5	5.5	5.5

Sizing Notes

Measurements are stated in centimeters unless otherwise indicated.

How we measure bikes

bike diagram loading

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.