Hey Guys,
I allready build Up 2 Gravel and several retro Bikes and Just bought myself a "cheap" Carbon Racebike
(Raymon Raceray 8.0)
However, it comes with conti "Grandsport Race" in 28x700c which are more Like 30 milimeters measured.
Since i dont have much experience in Roadbikes, my qustion is, If this ist enough Space for the tire so it doesnt damage the fork or should i buy 25mm Tires.
On the top Its more Like 3mm, to the Sides it should be fine i Think
by WhoIsMyself249
5 Comments
Looks a bit tight. Ride it for a short distance and see how the forks and wheel flexes. Put some tape on the inside of the forks for a bit of protection and see if they touch. You might be amazed how much the wheels flex.
The clearance you’re showing will probably work but will rub a lot of paint off the inside of the fork. 25mm tire will rarely rub unless it gets real muddy.
Just because it fits doesn’t make it right or safe.
With that gap all it will take is the tyre to pick up a fairly small stone or piece of debris for it to at best gauge out your frame or at worst lock up the wheel and throw you off.
With that in mind Ask yourself the simple question. How much do I like the simple things in life like having my own teeth.
More than that if you dont like involuntary braking / flight / medical bills. Fine on a velodrome…
At least 3mm on sides, less of that on top.
I got like 1-2mm to top on gravel bike and did 10kkm like that, and only downside was grinding noise when riding on wet gravel.
Fine gravel bits stuct to wet tire and scratch frame and fork, but it doesn’t happens often enough to be issue for alloy frame and fork.