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Rider Height
<- Comparison guides

sport / default rider 183 cm

Buell 1125R vs Kawasaki KR-1S ergonomics

Buell 1125R and Kawasaki KR-1S 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

Buell 1125R

Modeled scoreProvisional
90Comfortable

All contacts reached

Kawasaki KR-1S

Modeled scoreProvisional
90Comfortable

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 Buell 1125R lists a 775 mm seat; the Kawasaki KR-1S lists 755 mm — a 20 mm difference. 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.

On seat height alone, the Kawasaki KR-1S has the easier modeled ground reach. Load your measurements into the simulator to compare the model, then verify both motorcycles in person.

Geometry snapshot

Geometry comparison for Buell 1125R and Kawasaki KR-1S
SpecBuell 1125RKawasaki KR-1S
Seat height775 mm755 mm
Wheelbase1,375 mm1,365 mm
Wet weight211 kg-
Displacement1,125 cc249 cc

Posture metrics

Knee angle

Buell 1125R
Sport (60.7 deg)
Kawasaki KR-1S
Sport (60.7 deg)

Hip angle

Buell 1125R
Neutral (99.5 deg)
Kawasaki KR-1S
Neutral (99.7 deg)

Elbow angle

Buell 1125R
Relaxed (143.3 deg)
Kawasaki KR-1S
Relaxed (143.3 deg)

Torso lean

Buell 1125R
Forward (25.3 deg)
Kawasaki KR-1S
Forward (25.2 deg)