Fitbikeco Series One 20.75 TT
$469.95
Details
The Series One was our first frame when we started FIT back in 2000, and it’s our most popular bike to date. For 2026, we’ve upgraded to a CNC-machined integrated headtube and a fully sealed bearing front hub. The S1 frame and fork have been lightened up and offered in 3 top tube sizes with corresponding handlebar and crank sizes.
Specs
| Frame | Cro-Mo Front Tri |
|---|---|
| Fork | Cro-Mo Steerer, 33mm Offset, Welded Insert |
| Wheels | FRONT WHEEL: FIT S1W Rim w/Sealed Hub/REAR WHEEL: FIT S1W Rim w/Sealed 9T Cassette |
| Tires | FIT OEM 2.4" |
| Bottom Bracket | Sealed Mid |
| Crankset | Tubular Cro-Mo 170mm |
| Brakes | U-Brake w/Low Tension Springs, Two Finger Lever, Linear |
| Stem | FIT Top Load |
| Headset | Integrated w/Gyro Holes |
| Saddle | More Padded Integrated Combo, 200mm Post |
| Pedals | FIT PC |
| Accessories & Extras | Sealed Front Hub/ Integrated HT New for 2026 |
* Subject to change without notice.
Part Numbers
| Option | UPC | MPN | Store SKU |
|---|---|---|---|
| Gloss Black / One Size / 20-inch | 745808300197 | 29-T1-SO-L-B | 210000028817 |