Brackets and mounts
150cc Motorcycle USD Front Fork Suspension Assembly
- Bounding box
- 258.0 × 57.0 × 754.0 mm
- Engine
- Precision B-rep
- Parameters
- 17
- Published
- November 2, 2026
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The prompt
Concept CAD of a pair of inverted (USD) telescopic front suspension fork legs for a 150cc street motorcycle. Two inner stanchions, two outer slider housings with axle lugs and axle bores, brake caliper mounting holes, top caps and dust seals. Forks spaced 190 mm centre-to-centre. All dimensions in mm; concept geometry only, not a safety-certified suspension design.
Parameters
| Name | Value | Range |
|---|---|---|
| Fork centre-to-centre spacing | 190 mm | 170 – 210 |
| Inner stanchion outside diameter | 41 mm | 38 – 45 |
| Inner stanchion bore diameter | 33 mm | 28 – 37 |
| Inner stanchion length | 520 mm | 450 – 600 |
| Outer slider outside diameter | 55 mm | 50 – 62 |
| Outer slider bore diameter | 43 mm | 42 – 48 |
| Outer slider length | 300 mm | 250 – 340 |
| Slider lower position | 0 mm | -20 – 30 |
| Front axle bore diameter | 15 mm | 12 – 20 |
| Axle lug width | 68 mm | 55 – 80 |
| Axle lug depth | 56 mm | 45 – 65 |
| Axle lug height | 76 mm | 60 – 90 |
| Brake caliper mount bolt spacing | 83 mm | 70 – 100 |
| Brake caliper mount hole diameter | 10 mm | 8 – 12 |
| Top fork cap diameter | 43 mm | 38 – 48 |
| Top fork cap height | 14 mm | 10 – 20 |
| Dust seal height | 18 mm | 12 – 24 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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