looks great! Which model mudguards did you install? I plan to replace the black guards with silver.

They're this silver/grey version of these 55 mm mudguards, the tires are currently 41mm, these mudguards will fit anything between 32-47 mm and are quite easy to fit.

https://www.sks-germany.com/en/produ...-silver-11816/

Thanks! I have those on my Cannondale Quick 1 and was thinking about the silver option for the Multitrack. Your pic has convinced me that's the right and proper choice.

Almost Finished with this old Multitrack
 

Counting the $30 I paid for the bike I'm in so far for just over $125 with more to come. New tires, tubes, and seatpost plus lots of hours in disassembly, assembly and cleaning. LOTS of cleaning! I think the previous owner just punched a hole in cans of motor oil and poured it over every component and most of the frame. Used rubbing alcohol on the frame, clayed it and ceramic coating applied. The chain seems to be okay after soaking in Liquid Wrench, cleaning and lubricating but it will be replaced in the immediate future. I just want to ride it some first. All brake and shifter cables are rusty so I'm going to get new cables and cable housing for those which is going to add up. I know I could have found a bike in much better shape for about what I'll finally have in it but this is something I enjoy doing now that I'm retired. Keeps me busy. Wow. Just saw a Trek 800 "Mountain Track" on FB Marketplace for $25. NOPE! This one is enough for now.

My rescue multitrack 700 continues
 

https://cimg8.ibsrv.net/gimg/bikefor...24dcb8cb28.jpgI think it is a 1992 model. 30.8 pounds!
Forgot to add a photo.

UPDATE: After all that work and $ I found a Trek 3500 aluminum frame mountain bike in great shape. Weighs 30.16 pounds even with front suspension. Sold the Multitrack.

I have $240 in the 730 Multitrack above but went bit crazy with the 2x11 105 conversion and installed new brakes, handles, and Microshift shifters. Upgraded wheelset is another $65 but I'll keep them if I sell the bike. I appreciate the need to keep busy and see progress in your life.

I had a 1990 Multitrack 750 (posted years back in this thread) that I unfortunately had to retire due to an ovalized head tube. The local MTB trails by my house were just a bit too much for it, apparently. Now I'm back four years later looking for another Multitrack, because there's not much else that is such a good combination of quality and value, especially the double-butted frames. I'd like to find another 21" lugged 750 or 790, and hopefully not ovalize the head tube this time.

I’ve never seen this before. The head tube actually deformed into an oval shape? I would think you’d notice other headset problems long before enough force was being applied to the steel head tube to deform it. Especially with the added reinforcement of a lugged frame.

This was pretty common BITD when MTBs took off; much was writ in the past about it. Bontrager, Ritchey, and Breezer stuck to 1" high quality steel for many years with no issues. Others upsized to 1-1/8" as an easy fix. Fisher saw the writing on the wall and went straight to 1-1/4". Fast forward to today, and 1-1/8" is the new "standard"

Anyone ever try to do a lightweight Multitrack build? Still with gears, just with lightweight parts.

Under 22 lbs. would be sweet - feasible? Someone above posted their 1x drop bar conversion weighing 23.5 lbs, but it had fat tires and 1,800g wheels. Seems like sub 22 would be possible without going too crazy.

22lbs shoud be feasible.

I built my 21" '94 750 to 23lbs 5oz trying to not be heavy, not necessarily a lightweight build. 2x9, 1800g wheels, 38mm tires

Half a pound should be easy to take off.
https://cimg8.ibsrv.net/gimg/bikefor...6b00c3fc8b.png
https://cimg6.ibsrv.net/gimg/bikefor...ce27a3476a.png

Frame size , stand over
 

I'm looking at a 750 thats looks like a 23. I'm 6ft longish legs , wonder if right height . I think my inseam is 32. For some reason the dude never responded to my question to measurement. It's over an hour drive. Any one here have that frame , thanks . I already have vintage touring, vintage mountain, this could be my vintage gravel :innocent:

I have a '97 750 in 21". I'm also 6' and wear 32 slacks. I prefer frames slightly small vs. slightly large, and I like the 21". I do like the ride to be more upright and comfortable...if you like speed and prefer stretched out some, then the 23" might be the right size. These have pretty long stems to begin with...even though I have the 21", I still shortened the effective reach quite a lot with a shorter stem with a fairly long quill.

Thanks.
 

I can always use different handlebars or stem. Just might have to take the ride if still for sale. For some reason he says if you can throw your leg over it its right size ,, jeez :notamused:. Didn't email back the stand over height ...

If the seller provided a picture, you can usually make out the year (or close to it) by colorway. And then the Vintage Trek website has lots of technical information that'll give you the geometry (including stand over) for each of the frame sizes: https://www.vintage-trek.com/

How'd it go? Did you get the bike? 750 was top of the line for most years.

This 730 has bubbled to the surface here. A bit rough. The main issue is both brake mounts on the fork are broken off.

https://live.staticflickr.com/65535/...3c1b4903_b.jpg
https://live.staticflickr.com/65535/...fe384ee8_b.jpg

Fork swap or try to install new posts. I like the color.

Those brake tracks have never seen a brake pad, until the studs snapped off.

All that damage seems to from the elements. I'd look hard at the inside of the frame before attempting any fork repair. Pull the seatpost, headset, and BB; and look for interior rust. If the seatpost doesn't even come out, I'd consider tossing it.

Unless I found worrisome frame rust per DorkDisk, I would still consider this a good find and replace the fork with a Dimension steel unit, which are inexpensive and look very much like the OEM unit, albeit in black. Or I might be able to round up a good used replacement for even less at one of my area community bike shops. Repainting a fork with automotive touch up paint is easy peasy, but I don’t think having a black one is the end of the world either, maybe making it part of the color way with black hardware and accessories, which you already have a good start on.

I've got exactly this frame. I bought it used, and one of the front brake studs had similarly broken and been fixed with a Problem Solvers Stud Repair Kit. It wasn't initially installed properly, but after re-tapping the threads in the fork it's held up great through daily use. I don't see the kit on the Problem Solvers website but it is widely available from bike shops. I'd give it a try before buying a new fork - it's inexpensive, and you could probably even assemble your own equivalent cheaper from hardware store parts.

That explains the silver fork on my 730!

He never respoded to the standover height, and was to far of a ride if it was wrong frame size. Oh well , search goes on....

Bummer. I'm sure the right bike will come along.

Question - do you have a picture you can share? We can always find the sizing info via the Trek Technical Manual, then compare it against the sizing differences of the smaller sizes - and since I have a smaller size, I can always measure stand over and we can add what would be the larger frame size difference to come up with an approximation.

Then again, I understand any misgivings about working with an unresponsive seller. Good news is these bikes are fairly common:thumb: