Fiido C21 geometry
All measurements provided in mm unless otherwise noted.
| M | L | XL | |
| Rider heights | 5'3" (160cm) - 5'9" (175cm) | 5'7" (170cm) - 6'5" (195cm) | 6'5"(190cm) -6'9" (205 cm) |
| Wheel size | CST 700*40C | CST 700*40C | CST 700*40C |
| A-Seat tube | 510 | 550 | 610 |
| B-Seat tube angle | 73° | 73° | 73° |
| C-Head tube | 150 | 170 | 190 |
| D-Head angle | 71.5° | 72° | 72° |
| E-Top tube length | 585 | 600 | 630 |
| F-Standover height | 800 | 832 | 878 |
| G-BB drop | 68 | 68 | 68 |
| H-Rear Center | 445 | 445 | 455 |
| I-Wheelbase | 1066 | 1077 | 1106 |
| J-Reach | 402 | 411 | 428 |
| K-Stack | 597 | 618 | 660 |
| L-Maximum seat height | 1045 | 1130 | 1190 |
| M-Minimum seat height | 885 | 920 | 980 |
| N-Total length | 1790 | 1800 | 1815 |
| O-Handlebar height | 1010 | 1010 | 1030 |
| P-Handlebar length | 680 | 680 | 680 |