Skip to content
Rider Height
<- Comparison guides

standard / default rider 183 cm

Triumph Bonneville T100 vs Yamaha SR400 ergonomics

Triumph Bonneville T100 and Yamaha SR400 have modeled posture scores within three points for the 183 cm default rider. Treat this as a planning estimate; posture preference, data confidence, and a real test sit still matter.

Modeled fit comparison

Triumph Bonneville T100

Modeled scoreProvisional
95Comfortable

All contacts reached

Yamaha SR400

Modeled scoreProvisional
95Comfortable

All contacts reached

The modeled scores are within three points, so the result does not distinguish a higher-scoring bike. Treat the result as a planning estimate and compare each bike's geometry confidence before a real test sit.

Rider fit: reaching the ground

The Triumph Bonneville T100 lists a 790 mm seat; the Yamaha SR400 lists 790 mm, within a few millimetres of each other. Seat height is only a first-pass ground-reach input. It does not establish safety or actual foot contact. Seat width, suspension sag, boots, mobility, load, and individual proportions can materially change the result.

Geometry snapshot

Geometry comparison for Triumph Bonneville T100 and Yamaha SR400
SpecTriumph Bonneville T100Yamaha SR400
Seat height790 mm790 mm
Wheelbase1,450 mm1,410 mm
Wet weight228 kg174 kg
Displacement900 cc399 cc

Posture metrics

Knee angle

Triumph Bonneville T100
Sport (58.1 deg)
Yamaha SR400
Sport (58.0 deg)

Hip angle

Triumph Bonneville T100
Neutral (94.0 deg)
Yamaha SR400
Neutral (94.8 deg)

Elbow angle

Triumph Bonneville T100
Relaxed (143.3 deg)
Yamaha SR400
Relaxed (143.3 deg)

Torso lean

Triumph Bonneville T100
Neutral (12.0 deg)
Yamaha SR400
Neutral (11.5 deg)