Geometry

For descriptions of what each measurement means, please refer to our “Geometry Charts, Demystified” support document.

RFA (Shimano) Geometry

RFA
1. Head tube length8.7″ (220 mm)
2. Fork length15.75″ (400 mm)
3. Fork off set1.4″ (35 mm)
4. Seat tube18.1″ (460 mm)
5. Reach15.4″ (390 mm)
6. Stack24.4″ (620 mm)
7. Effective top tube22.6″ (575 mm)
8. Actual top tube23.8″ (605 mm)
9. Step over height22″ (560 mm)
10. Chainstay length25.4″ (645 mm)
11. Deck length25.2″ (640 mm)
12. Deck height26″ (660 mm)
13. Wheel base49.8″ (1265 mm)
14. Actual length73.4″ (1865 mm)

eSwoop (Shimano) Geometry

1. Head tube length7.75″ (197 mm)
2. Fork length16.5 (419 mm)
3. Fork off set2.5″ (63.5 mm)
4. Seat tube17″ (432 mm)
5. Reach15″ (381 mm)
6. Stack26″ (660 mm)
7. Effective top tube22.5″ (572 mm)
8. Actual top tube25.5″ (648 mm)
9. Step over height18″ (457 mm)
10. Chainstay length32″ (813 mm)
11. Deck length30″ (762 mm)
12. Deck height23″ (584 mm)
13. Wheel base
14. Actual length83″ (2108 mm)

eStoker (Shimano) Geometry

1. Head tube length7.875″ (200 mm)
2. Fork length15.6″ (395 mm)
3. Fork off set2.6″ (65 mm)
4. Seat tube19″ (485 mm)
5. Reach16″ (410 mm)
6. Stack22″ (560 mm)
7. Effective top tube23.2″ (590 mm)
8. Actual top tube22.8″ (580 mm)
9. Step over height25.75″ (654 mm)
10. Chainstay length31.5″ (800 mm)
11. Deck length29.7″ (755 mm)
12. Deck height26.4″ (670 mm)
13. Wheel base56.3″ (1430 mm)
14. Actual length82″ (2080 mm)

Geometry comparison between Shimano models

RFAeStokereSwoop
1. Head tube length8.7″ (220 mm)7.875″ (200 mm)7.75″ (197 mm)
2. Fork length15.75″ (400 mm)15.6″ (395 mm)16.5 (419 mm)
3. Fork off set1.4″ (35 mm)2.6″ (65 mm)2.5″ (63.5 mm)
4. Seat tube18.1″ (460 mm)19″ (485 mm)17″ (432 mm)
5. Reach15.4″ (390 mm)16″ (410 mm)15″ (381 mm)
6. Stack24.4″ (620 mm)22″ (560 mm)26″ (660 mm)
7. Effective top tube22.6″ (575 mm)23.2″ (590 mm)22.5″ (572 mm)
8. Actual top tube23.8″ (605 mm)22.8″ (580 mm)25.5″ (648 mm)
9. Step over height22″ (560 mm)25.75″ (654 mm)18″ (457 mm)
10 .Chainstay length25.4″ (645 mm)31.5″ (800 mm)32″ (813 mm)
11. Deck length25.2″ (640 mm)29.7″ (755 mm)30″ (762 mm)
12. Deck height26″ (660 mm)26.4″ (670 mm)23″ (584 mm)
13. Wheel base49.8″ (1265 mm)56.3″ (1430 mm)
14. Actual length73.4″ (1865 mm)82″ (2080 mm)83″ (2108 mm)

Sizing chart

All Xtracycle frames from model year 2018 forward come in one size.

For 2021 model year bikes (all Shimano STEPS EP8 bikes), all bikes come with a 450mm long seat post that can fit riders of various heights. When you choose the size of the FitKit on the 2021 bikes, you are only choosing the stem size. This is the part that connects your handlebars to your fork. The stem sizes are small (60mm), medium (90mm) or large (120mm).

For 2018-2020 model year bikes (the Swoop non-electric and bikes with Bosch systems), when you choose the size of the FitKit, you are choosing both your seat post length and the stem size. The sizes are small (300mm seat post, 60mm stem), medium (400mm seat post, 90mm stem) or large (450mm seat post, 120mm stem).

Here are the FitKit sizes we recommend for each bike model based on the rider’s height.

If the rider is…and they are riding a…they should use this FitKit:
5′ to 5’5″RFASmall
5’6″ to 5’11”RFAMedium
6′ to 6’4″RFALarge
5′ to 5’5″Stoker(Stoker is not recommended)
5’6″ to 5’11”StokerMedium
6′ to 6’4″StokerLarge
5′ to 5’5″SwoopSmall
5’6″ to 5’11”SwoopMedium
5’9″ to 6’4″SwoopLarge