Front cycle wing clearance

[rpjg1975]

Is there a minimum distance between the front cycle wings and the tyres or is it just down to the individual builder?

Russ

[alga]

No legal requirements I know of. However, a couple of observations. There is a significant variation in diameters of tyres with the same nominal size. Here are two 195/50R15 tyres:

https://lh6.googleusercontent.com/-E-q58a8vAHc/USn5bUsfxQI/AAAAAAAAEU8/1s0mTDmDHEI/s800/2012-10-14%252016.35.22.jpg

Also, 195/50R15 and 195/55R15 are both acceptable with the Sierra speedometer and drivetrain, the speed difference is only about 3%, but the diameter is different by about a centimetre.

In other words, I would leave an inch or so if I were making new wing stays.

[Talonmotorsport]

As far as I know there is no minimum requirement for tyre and arch clearance. How ever some thing to consider is a tyre that is static as in not moving stays flat across it's width, but a tyre that is only running 18-22 psi doing 70mph+ will bulge with centrifugal force making it maybe 10-15mm bigger in the centre. A tyre with low pressure will also have more flex in the side walls, so in short don't make your cycle wings to tight to the tyres.

[rpjg1975]

Brilliant, cheers guys

russ

[baz-r]

i ran some 25mm tube lengths off the top of a set of brand new tyres then used thease as a guide to mount the cycle wings.

[rpjg1975]

Cheers, I was thinking along the same lines :)