How do I tell which tyre size is suitable for my wheels?

Dan_JR
Dan_JR Posts: 36
edited June 2010 in The workshop
Hi all

As the subject says, I need to replace my tyres on my commuter which has Alex RP15F rims. When I purchased the bike it has 700x28 but I want to run 25 or 23's. How can I tell if they will fit properly?

Thanks in advance
JR

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