Does the cycle wing HAVE to curve around the tyre-shoulders?

No
They can be flat, with a well protected edge.

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Originally posted by scootz
Does the cycle wing HAVE to curve around the tyre-shoulders?

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quote:

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Originally posted by smart51

quote:

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Originally posted by scootz
Does the cycle wing HAVE to curve around the tyre-shoulders?

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Unless the rest of the car is also styled from 1910, yes. Its the law.

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IVA MANUAL
16 Exterior Projections

4. Wheel arches must be ‘turned inwards’, or have a radius of curvature of at least 2.5mm

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37 Wheel Guards

1. The vehicle must be fitted with wheel guards
2. The wheel guard must extend at least 30 degrees from the centre of the wheel to the front (figure 1)
3. The wheel guard must extend at least 50 degrees from the centre of the wheel to the rear (figure 1)
4. The wheel guard must cover the full breadth of the tyre throughout the required dimensions (see note 2 & figure 1)
5. The rear of the wheel guard must not terminate above a horizontal plane of 150mm above the wheel centre. (see note1 & figure 1)

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Cheers guys... Loggy - that seems pretty conclusive!

"or have a radius of curvature of at least 2.5mm"
So they can be flat - it's an either/or not an "as well as"
Mine were certainly flat at SVA - I hadn't had time to get the moulds done for my wide arches so just bent some flat ali sheet around a tyre & stuck some edge trim on!

Some thing like this This bus is NOT on the road

handmade bus
Jacko