No 2.25's but I measured the tread width of my 2.4s at 57mm, does that help?
For all tire width relatyed questions I go to Shiggy's pages, he's even got a Schwalbe specs page:
http://mtbtires.com/site2/tire-specs/56-schwalbe/59-schwalbe-tire-specs
No 2.25 Nobby Nic on this one, but search and he'll have it somewhere. Lot's of usefull info here and a bunch of 29er tire data too. Edit: He's got the 29er Ralph in 2.25 at a 56.5 carcass and tread width, same difference. I guess my rim inside wisth is a bit less than Shiggy's
Enjoy!!
For all tire width relatyed questions I go to Shiggy's pages, he's even got a Schwalbe specs page:
http://mtbtires.com/site2/tire-specs/56-schwalbe/59-schwalbe-tire-specs
No 2.25 Nobby Nic on this one, but search and he'll have it somewhere. Lot's of usefull info here and a bunch of 29er tire data too. Edit: He's got the 29er Ralph in 2.25 at a 56.5 carcass and tread width, same difference. I guess my rim inside wisth is a bit less than Shiggy's
Enjoy!!