Trek 7200 convert suspension fork to chromoly

[SteadyEddie]

Can anyone recommend a source for the appropriate chromoly fork to replace the more expensive RST suspension fork. I recently replaced my 7300 with a suspension SunTour but $170 at the bike shop was too much. Looking at migrating three Trek 72/7300 to chromoly rigids. All are size 17.5 to fit riders at 5'8".

I have seen craiglist list a salvage [ frozen bb ] 7300 but it was a 19 inch Trek. Would that fork fit the next size down, my 17 1/2's ??

Any pointers appreciated. I do most of my own repair work. Fairly technical knowledge wise etc.

THX.

[painkiller]

If wheel size is the same, the longer fork should work. You would either add spacers or cut down the fork. If you would like your bars a tad higher, add the spacers. If the fork is a threaded model, threads must be below the race to be able to tighten the headset.

[SteadyEddie]

My concern was the axle-to-crown might be longer on the larger frame. I lost my Trek dimension chart that showed those details. Thank you for responding. ed