Haycal112

I have a 1999 Trek 7500 that is in need of some TLC. I want to use this bike as a learning tool to get better at bike maintenance and a in town round-about.

First, I think it is a 8 speed 11-30 cassette, according to the web, could I go to a 11-34 for some added low range?

Second, the crank, chainring and bottom bracket. I want to go simple, I would like to go with a single chainring, but not sure if I would want a 38 or a 42 tooth. And that leads to the bottom bracket, I have no idea what to look for.

Third, shifters. It came with grip shift, but can I go with just a rapid fire shifter for the rear?

I plan on trying to do this on a budget . Sorry for so many questions.

Thanks

MRT2

The 7500 was a decent enough bike. If memory serves, it was at the upper end of the line for Trek hybrids. Any reason you can't just stick with the stock build, give it a basic tuneup and just ride? Do the grip shifters still work? If they don't, you should be able to find an inexpensive 3 x 8 speed trigger shifter that will work.

The reason I ask is, it could get a little expensive to switch out the crankset and cassette (and maybe chain), for little benefit since the 38 tooth middle chainring is probably adequate for 95% of your riding. If you don't like using the front shifter, just don't use the front shifter. Weight savings going to a single crankset is pretty small.

Haycal112

The shifter are pretty well toast. At the moment, I have just took the front deraileur off and am running off the 38 . I was just wanting a project to work on with the kids. Kind to make it my own also.

MRT2

OK. My advise is to put the front derailleur back on and replace the shifters. Give it a basic tuneup, replace any worn parts (chain, cables, brake pads, tires), and ride it. I see no benefit to switching from a 3 x 8 to a 1 x 8. 1 x 10 or 1 x 11 is maybe a different story, but that is getting into some real money.

Just MHO.

Wanderer

Those shifters can be found on Amazon for about 15 bucks apiece. I think prob Acera.

https://www.amazon.com/gp/product/B00...f_rd_i=desktop

MRT2

Shimano Acera M360 3x8 Shift Levers

Wanderer

Wow, the new ones are fancier......

travbikeman

Those are nice, and less expensive than the older Acera's on Amazon.

james89

Any update on this?