Colnago T1Rs geometryTrack · 2026 · 3 sizes, from S to L
The Colnago T1Rs is a track bike available in 3 sizes, from S to L. Stack ranges from 468 to 520 mm and reach from 417 to 461 mm. Its position sits between racing and endurance. All sizes share 387 mm chainstays.
What size T1Rs do I need?
Enter the stack and reach of a bike that fits you well and we will tell you which size is closest and how to set it up.
Enter your stack and reach to see which size fits you best.
Geometry chart by size
Measurements in mm and degrees, as published by Colnago. The ones that matter most for choosing a size are in bold.
| Size | S | M | L |
|---|---|---|---|
| Stack | 468 | 494 | 520 |
| Reach | 417 | 430 | 461 |
| Head tube length | 75 | 101 | 121 |
| Head angle | 73.0° | 73.0° | 73.0° |
| Chainstay length | 387 | 387 | 387 |
| Wheelbase | 977 | 997 | 1,036 |
| Front centre | 594 | 614 | 652 |
| BB drop | 55 | 55 | 55 |
| Fork length | 372 | 372 | 372 |
| Fork offset | 45 | 45 | 45 |
| Seat angle (method not stated) | 77.5° | 77.5° | 76.5° |
Source: Colnago official website · data from 11 Nov 2026. Spot a mistake?
Stack and reach of every size
Higher means a taller front end; further right means a longer reach. The blue dot is your search.
Character of each size
Compared with other track bikes. Further right means more of that quality.
Bikes with similar geometry (size M)
The closest size of other track models, by stack and reach.
Frequently asked questions
What size T1Rs do I need?
It depends on your position, not just your height. The most reliable way is to compare the stack and reach of a bike that fits you with those of each size (from 468/417 mm in size S to 520/461 mm in size L). The size finder on this page shows the closest size and the stem and spacers you would need.
What are the stack and reach of the T1Rs in size M?
Stack of 494 mm and reach of 430 mm.
Is the T1Rs a racing or an endurance bike?
In between. In size M its stack-to-reach ratio is at percentile 42 of track bikes: neither very low nor very tall.