Minium clearance for full mudguards

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specialist
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Minium clearance for full mudguards

Postby specialist » 5 Oct 2007, 5:24pm

Fitting up my winter bike, and trying to decide if I need race blades or can fit full mudguards in, what is the minimum distance between the tyre and brake caliper brake bolt hole I can get away with, any recomendations on the slimmest 'guards?

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Mick F
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Postby Mick F » 5 Oct 2007, 8:22pm

I have 1 inch from brake bridge centre, to top of tyre.

When I ordered my Mercian, I specifically asked for minimum clearance but still be able to fit mudguards.

I use Campag Chorus brakes, before that I had Mirage, and before that Victory. All are for "racing bikes" and all give just enough clearance.

My 'guards are SKS Chromoplastic 35mm.
Mick F. Cornwall

lb1dej
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Postby lb1dej » 5 Oct 2007, 8:25pm

Chris Juden covered this in an issue of Cycling a year or few ago as I recall. If you ride over any rough stuff like gravel on the road you need sufficient space for any picked up objects that have stuck to the tyre to not jam against your m'guard and bring you to a very sudden stop.
Dave

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Mick F
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Postby Mick F » 5 Oct 2007, 8:27pm

Other than leaves making a noise, I've not ever had a problem. My Mercian is 21 years old this month.
Mick F. Cornwall

pete75
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Postby pete75 » 7 Oct 2007, 11:46am

lb1dej wrote:Chris Juden covered this in an issue of Cycling a year or few ago as I recall. If you ride over any rough stuff like gravel on the road you need sufficient space for any picked up objects that have stuck to the tyre to not jam against your m'guard and bring you to a very sudden stop.
Dave


When fitting it helps if you adjust the mudguard stays so there is less clearance at the bottom edge of the guard than for the rest of it. This means that anything that doesn't get scraped off the tyre by the bottom edge will have clearance for the rest of its passage.

ransos
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Postby ransos » 8 Oct 2007, 10:27am

My Thorn Audax has just enough room for SKS mudguards & 28mm tyres. The front 'guard has a plastic attachment at the fork that is designed to let go if an object gets caught up. Only issue is that on rough cycle paths, or when honking out of the saddle hard, the fron guard can rub very slightly on the wheel.

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Si
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Postby Si » 8 Oct 2007, 10:38am

I tend to go by rule of thumb. If I can get my thumb in between the guard and tyre then I'm happy to use it.

I've used tighter clearance before but didn't enjoy it - have ground to a halt several times due to mud build up on nasty weather winter rides using rural lanes.