Attached are photos of the fork with 23c (treaded tyre) and 25c (smooth tread) tyres. The 25c is a tubular and I think it does come up a bit smaller than a 25c clincher. A 25c would definitely fit and you may just squeeze a 28c in but I think it would be very tight and also depend on the caliper to be used.
Hi Jono84
Attached are photos of the fork with 23c (treaded tyre) and 25c (smooth tread) tyres. The 25c is a tubular and I think it does come up a bit smaller than a 25c clincher. A 25c would definitely fit and you may just squeeze a 28c in but I think it would be very tight and also depend on the caliper to be used.
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