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cafe-racer / default rider 183 cm

Triumph Bonneville T120 Ace vs Triumph Street Cup ergonomics

Triumph Bonneville T120 Ace and Triumph Street Cup land within a few ergonomic points for the default rider, so the better choice comes down to posture preference and bike category.

Fit verdict

Triumph Bonneville T120 Ace

95Comfortable

All contacts reached

Triumph Street Cup

95Comfortable

All contacts reached

The two bikes are close enough that posture preference matters more than the overall score.

Rider fit: reaching the ground

The Triumph Bonneville T120 Ace has a 785 mm seat; the Triumph Street Cup sits at 780 mm — a 5 mm difference. As a rule of thumb you flat-foot a bike when your inseam roughly matches its seat height: about 79 cm for the Triumph Bonneville T120 Ace and 78 cm for the Triumph Street Cup.

That makes the Triumph Street Cup the easier reach to the ground — the safer pick for shorter riders or anyone who wants both feet planted at a stop — while the Triumph Bonneville T120 Ace gives taller riders more legroom and a more open knee bend. Load your own height and inseam into the simulator to see exactly how each one fits you.

Geometry snapshot

Geometry comparison for Triumph Bonneville T120 Ace and Triumph Street Cup
SpecTriumph Bonneville T120 AceTriumph Street Cup
Seat height785 mm780 mm
Wheelbase1,445 mm1,435 mm
Wet weight--
Displacement1,200 cc900 cc

Posture metrics

Knee angle

Triumph Bonneville T120 Ace
Sport (58.0 deg)
Triumph Street Cup
Sport (58.0 deg)

Hip angle

Triumph Bonneville T120 Ace
Neutral (94.3 deg)
Triumph Street Cup
Neutral (94.3 deg)

Elbow angle

Triumph Bonneville T120 Ace
Relaxed (143.3 deg)
Triumph Street Cup
Relaxed (143.3 deg)

Torso lean

Triumph Bonneville T120 Ace
Neutral (11.8 deg)
Triumph Street Cup
Neutral (11.8 deg)