Cannondale Topstone 1 Bicycle – Shimano GRX 2x12 Gravel Bike
Explore new horizons with your ultimate gravel bike
The Cannondale Topstone 1 is a high-end gravel bike, designed for those who want to go beyond the pavement, explore dirt trails, undertake long journeys, or simply experience their daily commute with superior performance.
With its SmartForm C2 aluminum frame, Shimano GRX 820/600 2x12 speed drivetrain, hydraulic disc brakes, and WTB tubeless ready wheels, the Topstone 1 combines versatility, lightness, and durability, ready for any gravel or bikepacking adventure.
Ideal for:
Gravel riding on dirt and mixed terrain
Off-road explorations and bikepacking adventures
Sporty commuting and high-performance urban rides
Main Features
Lightweight SmartForm C2 alloy frame with geometry optimized for comfort and responsiveness
Shimano GRX 820/600 2x12 speed drivetrain, smooth and precise even under load
Shimano GRX 600/400 hydraulic disc brakes, reliable modulation and stopping power
WTB ST i23 TCS tubeless ready wheels with WTB Riddler 700x37c tires for grip and speed
Fizik Aliante Delta saddle, perfect for comfort on long distances
Wide tire clearance for tires up to 45 mm, increased traction and comfort
Numerous mounts for bottles, bags, and accessories: perfect for bikepacking
Technical Specifications:
Frame Kit
Frame: Topstone lightweight SmartForm C2 alloy, 12x142 mm rear thru-axle, tapered steerer, BSA threaded bottom bracket, flat mount disc brake mounts, StraightShot internal cable routing, multiple bottle cage and accessory mounts
Fork: Topstone carbon, tapered steerer from 1-1/8" to 1.5", 55 mm OutFront offset, flat mount disc brake, internal cable routing, 12x100 mm front thru-axle, fender and rack mounts
Headset: Integrated, from 1-1/8" to 1.5"
Drivetrain
Rear derailleur: Shimano GRX 820, Shadow RD+ technology
Front derailleur: Shimano GRX 820
Shift levers: Shimano GRX 600, 12 speed
Crankset: Shimano GRX 600, 46/30 teeth
Cassette: Shimano HG R7100, 11-34 teeth, 12 speed
Chain: Shimano HG M7100, 12 speed
Bottom bracket: Shimano BSA 68 mm threaded
Brakes
Brakes: Shimano GRX 400 hydraulic disc
Rotors: Shimano RT64, 160 mm front / 160 mm rear
Brake levers: Shimano GRX 600 hydraulic disc
Wheels
Rims: WTB ST i23 TCS, 28 holes, tubeless ready
Spokes: 14 gauge stainless steel
Front hub: Formula with cartridge bearings, 12x100 mm, centerlock
Rear hub: Formula with cartridge bearings, 12x142 mm, centerlock
Tires: WTB Riddler TCS Light, size 700x37c, tubeless compatible
Wheel size: 700c
Tire compatibility: up to 45 mm width
Components
Handlebar: Cannondale 3, 6061 alloy, 16° flare bend
Stem: Cannondale 3, 6061 alloy, 31.8 mm diameter, 7° rise
Handlebar tape: Cannondale Bar Tape 3.5 mm
Seatpost: Cannondale 3 6061 alloy, 27.2 mm diameter, 350 mm length
Saddle: Fizik Aliante Delta with S-Alloy rails
Extras included
Note Well
Technical specifications may change without notice depending on component availability.
Product images are for illustrative purposes only and may not exactly reflect the described features.
Perfect for those looking for a high-performance and reliable gravel bike, the Cannondale Topstone 1 is designed to offer the perfect balance of comfort, precision, and load capacity. Tackle the trail, the journey, or the urban commute with a companion ready for anything.
Do you want to receive your bike ready for use? Don't forget to add the bike assembly service at the time of purchase! Discover all the details here: Francesconi bike assembly
A Complete Guide to Bike Sizes
Foreword: Not all bike sizes are the same
Each type of bike has a specific frame and often uses a different size scale. For example, a road bike with a 54cm frame might be considered a medium size by one brand, but a large by another.
Bicycle adjustment margins
Some types of bikes, like gravel bikes, offer a wide range of adjustments, adapting to different body types. Other models, however, have limitations in this regard. This is an important aspect to consider.
How to use size charts
We've created a simple guide to help you find the right bike size:
- Check out our size charts for each bike type.
- Learn more with specific tips to help you make the right choice.
Size Charts: Find Your Perfect Bike
Gravel and road bikes
Sizes are based on the length of the top tube (in cm), which determines the reach of the bike.
| Cut
|
Recommended height
|
Horizontal tube length
|
| XS |
Up to 157 cm |
48-50 cm |
| S |
157-167 cm |
50-53 cm |
| M |
168-178 cm |
53-56 cm |
| THE |
178-185 cm |
56-58 cm |
| XL |
Over 185cm |
58-62 cm |
For gravel, measurements may vary slightly due to different geometries, but remain similar.
Mountain bike
MTBs are measured in inches, based on the seat tube.
| Cut
|
Recommended height
|
Size (in inches)
|
| XS |
Up to 157 cm |
14"-16" |
| S |
157-167 cm |
15"-17" |
| M |
168-178 cm |
16"-19" |
| THE |
178-185 cm |
18"-20" |
| XL |
Over 185cm |
20"-23" |
Sizes also vary depending on the type of MTB: full-suspension , hardtail or fat bike .
Children's bikes
The size depends on the size of the wheels, often associated with age:
| Age
|
Wheel Size
|
| 1-3 years |
12" |
| 2-4 years |
14" |
| 4-6 years |
16" |
| 5-8 years |
20" |
| 8-10 years |
24" |
| Over 10 years |
26"/27.5" |
What to do with half measures?
If you are between two sizes:
-
Comfort : Choose the larger size.
-
Performance : Go for the smaller size.
Final tips for choosing
-
Consult the manufacturer's instructions : Always check the brand's guidelines.
-
Ask an expert : a specialized workshop can help you choose based on your height, ideal reach and goals.
-
Test the bike : If possible, test the model you intend to purchase.
