Quiver

Cannondale2025

Topstone Carbon Lefty

Gravel6 geometry entries72 from the manufacturer

The 2025 Cannondale Topstone Carbon Lefty has frame geometry associated with a more upright position than most gravel bikes. This page lists 6 geometry entries, with reach from 364 to 397 mm and stack from 554 to 646 mm. The Topstone Carbon 1 Lefty AXS build comes with SRAM GX Eagle AXS shifting and Reserve 40|44 GR Carbon wheels.

Geometry comparisons use 684 other gravel bikes with usable geometry in Quiver. They describe frame geometry, not your hand position or tested ride feel.

Keep a record of your Topstone Carbon in Quiver. Start with the catalog details available for this bike, then keep track of the parts you change.

Published geometry is from manufacturer data. Source: cannondale.com. Last checked .

Key facts

Model year
2025
Frame
Lefty
Type
Gravel
Geometry
Complete for every size
Last checked

Geometry by size

2025 Cannondale Topstone Carbon Lefty geometry drawing, size 54.0Side view of the 2025 Cannondale Topstone Carbon Lefty frame in size 54.0, drawn to scale from its published geometry, with lettered dimension lines.J 1026A 378mmB 579mmJ 1026mmH 420mmK 76mmD 70.7°E 73.1°F 123mmG 482mmN 283mmL 772mm
Geometry drawing, size 54.0, to scale.
2025 Cannondale Topstone Carbon Lefty geometry by size
Measurement47.051.054.056.058.061.0
Reach(mm)364373378383389397
Stack(mm)554561579597615646
Head tube angle(°)69.970.770.770.770.770.7
Seat tube angle(°)73.173.173.173.173.173.1
Actual top tube(mm)510520531543557574
Chainstay length(mm)420420420420420420
Wheelbase(mm)100910121026103610501069
BB drop(mm)797976767474
BB height(mm)280280283283285285
Standover(mm)716741772800831864
Seat tube length(mm)410446482518554590
Head tube length(mm)97101123142164196
72 of 72 measurements, all from the manufacturer's published geometry.

Own a Topstone Carbon? Keep track of it in Quiver.

Start with the catalog details available for this bike, then keep track of the parts you change.

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Stock build

22 parts

Frame

Topstone
Frame

Suspension

Lefty Oliver
Fork

Drivetrain

SRAM Rival AXS
ShifterFrom the manufacturer: Speeds 12From the manufacturer: Actuation type Electronic
Sources for specificationsSources: theproscloset.com
SRAM GX Eagle AXS
Derailleur
SRAM GX Eagle Transmission
CassetteFrom the manufacturer: Freehub body SRAM XD
Sources for specificationsSources: OEM build page: forbidden Reya — forbiddenbike.com
SRAM GX Eagle Transmission
Chain
SRAM Rival DUB
Crankset
SRAM Rival 42
ChainringFrom the manufacturer: Speeds 12
Sources for specificationsSources: OEM build page: cannondale Topstone Carbon 2025 — cannondale.com
SRAM DUB
Bottom bracket

Wheels & Tires

Reserve 40|44 GR Carbon
WheelsetFrom the manufacturer: Rim material CarbonFrom the manufacturer: Spoke count 24From the manufacturer: Tubeless ready
Sources for specificationsSources: OEM build page: cannondale Topstone Carbon 2025 — cannondale.com
WTB Raddler TCS
Tire
Reserve 40 I 44 GR
Rim

Brakes

SRAM Rival
Brake
SRAM Rival AXS E1
BrakeFrom the manufacturer: Piston count 4
Sources for specificationsSources: OEM build page: giant Revolt 2026 — wheelworld.com
SRAM CenterLine X
Rotor
SRAM CenterLine X
Rotor

Cockpit

Easton EA70 AX
HandlebarFrom the manufacturer: Material Aluminum
Sources for specificationsSources: OEM build page: cannondale Topstone Carbon 2025 — cannondale.com
Cannondale C1 Conceal
Stem
Cannondale KnurlCork
GripsFrom the manufacturer: Compound / material cork
Sources for specificationsSources: OEM build page: cannondale Topstone Carbon 2025 — cannondale.com
Acros IS52/40 ICR
Headset

Seatpost & Saddle

Cannondale SAVE
Seatpost
fizik Terra Argo X5
Saddle

From the manufacturer

Quick answers

Which size or configuration labels have geometry for the 2025 Cannondale Topstone Carbon Lefty?
This page lists geometry under 6 labels: 47.0, 51.0, 54.0, 56.0, 58.0, and 61.0.
What are the reach and stack of the 2025 Cannondale Topstone Carbon Lefty in size 56.0?
In size 56.0, reach is 383 mm and stack is 597 mm.
What is the head tube angle of the 2025 Cannondale Topstone Carbon Lefty?
The head tube angle is 70.7 degrees in size 56.0.
What does the 2025 Cannondale Topstone Carbon 1 Lefty AXS ship with?
The stock build includes Topstone, Lefty Oliver, SRAM Rival AXS, and Reserve 40|44 GR Carbon.
Which years of the Cannondale Topstone Carbon are on Quiver?
Quiver has the Cannondale Topstone Carbon for 2025, 2026, 2021, and 2020.

Own a Topstone Carbon? Keep track of it in Quiver.

Start with the catalog details available for this bike, then keep track of the parts you change.

Free on the App StoreFree on Google Play Free to download. If you already have Quiver, the button opens it.
Free on App StoreFree on Google Play