Comparison of Ace Standard Model and Harley-Davidson Model JD 1928 [S]ave
| Attribute |  Harley-Davidson Model JD 1928 × |  Ace Standard Model × |
|---|---|---|
| General | ||
| Production from (year) | 1928 | 1927 |
| Make | Harley-Davidson | Ace |
| Model | Harley-Davidson Model JD | Ace Standard Model |
| Category | Allround | Allround |
| Engine and transmission | ||
| Engine type | V2, four-stroke | Twin, four-stroke |
| Fuel system | Carburettor | Carburettor |
| Displacement (cm³) | 1,208 | 1,234 |
| Transmission type,final drive | - | Chain |
| Bore (mm) | 87 | 69.9 |
| Stroke (mm) | 100 | - |
| Ignition | - | Magneto |
| Chassis | ||
| Front brakes | Expanding brake (drum brake) | - |
| Rear brakes | Expanding brake (drum brake) | - |
| Front tyre | 3-26 | 3.85-27 |
| Rear tyre | 3-23 | 3.85-27 |
| Seat | Single | Single spring-mounted |
| Wheels | Spoked | Spoked |
| Dimensions | ||
| Dry weight (kg) | 194 | 165 |
| Performance | ||
| Top speed (km/h) | 136 | - |
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