yes that is the correct measurement. I believe the replacement fork you want is something like "suspension corrected" or something like that
this may be what you need
Nashbar Rigid Mountain Bike Fork
Nashbar Rigid Mountain Bike Fork lets you rediscover the simplicity of riding a rigid fork.
- Our beefy 4130 chromoly fork features 31.8mm fork legs, tapered for a superb ride quality
- IS disc mount and removable V-brake studs allow you to build it up however you want
- Extra clearance for 3.0 tires with room for mud, and single eyelets at the dropout for full fenders
- Suspension corrected leg length means your bike's handling won't change
- Axle to Crown: 453mm
- Steerer length: 280mm
http://www.nashbar.com/bikes/Product...1_10000_202440
I agree on the fender find a way to lower it a few cm.
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