25mm tyre clearance

[fudgedog]

After rave reviews about GP4000's and needing new tyres I replaced them with 25mm, problem is the front just "skiffs" inside of fork on my Focus Izalco Pro 3. Anyone else had similar problems

 

[lpretro1]

It must be a very close clearance fork indeed. You don't want tyres scuffing your carbon fork - needs 23s instead.

 

[Mr Haematocrit]

No issues at all with rubbing, even on a Venge

 

[mcshroom]

Does this happen on both sides or just one? If it's only one side your wheel might not be in straight

 

[TissoT]

What type of rims have you got ?

 

[HLaB]

My first suggestion would be to try recentering your wheel. A tip told to me is: Open the QR, pull the brake and whilst still holding it, close the QR.

 

[fudgedog]

Not rubbing at sides of forks but at the top it's weird 23mm ok good 3-4mm clearance but 25mm once you pump them up past 85ps they start to skiff. Wheels are Fulcrum 3's Ive also tried them with DT Swiss same result

 

[Cycleops]

You might find it is OK with another brand of 25c, but will be expensive finding out! I am suprised as most bikes running 23c will accept 25's. You could try putting a small spacer in the top of the drop out which should just give you the extra clearance you need.

 

[Spoked Wheels]

My front forks also have very little gap. I found that using a wider rim 23mm (H Plus Son Archetype) leaves a slightly bigger clearance on top when using 25mm tyres, 25 Michelin Pro 4 to be more precise.

 

[snail2go]

Yup. Izalco Pro owner, and the clearance is verrry tight. Don't think I'll be able to keep these on...

Edit: On speaking to my LBS they said that its rim width. The stock 19mm rims definitely won't fit, but beyond this - more modern 23mm rims - it should be fine!

 

[Fab Foodie]

Buy a matching 23c for the front and keep the other 25c as a rear spare (these wear faster than fronts anyhow). Running 23c front and 25c will be fine.

 

[jessand]

I agree with FF, good compromise putting the comfier tyre where it'needed.