Mechanics and Fixing Any Questions Answered

I bought an ITM stem with a busted wedge, does anyone know what wedge to replace with? Seems to be several kinds/ specs. Cheers!

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does anyone know what wedge to replace with?

In the first instance, I'd take a punt on this MTB stem using the same angle and thread
https://bankruptbikeparts.co.uk/products/itm-cromoly-de-luxe-handlebar-stem-25-4-120mm-reach-early-mountain-bike

I'm supposed to have one of these seals on either side of the BB right? I.e. between the BB and the crank R & L.

I took apart an old bike to re-use the grx groupset but now that I'm coming to install everything I can only find one.

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Check for cracks at the welds too. Those stems are prone to it. Especially at the screwnuts.

yeah. might still be on the drive side of the crank?

No luck unfortunately. Will check with my LBS to see if they have a spare one somewhere

Try a bearing place or measure and see if you can buy one

I've got 105 rear mech shifting a 42T fine using a wolf tooth.

Take off the wolf tooth.

Hello. I'm after a square taper crank set that will also take a 42t up to 45t on my '94 Marin Bear Valley.
I've been looking at the sun race spider crankset but the 96bcd isn't that common and can only find a 40t chain for it.

Any suggestions or alternatives would be appreciated. Cheers.

what about an old school mtb crank (bit earlier than you marin tho)?. They sometimes have the same bcd as compact road chainsets -110 -so there are loads of chaining options. you might find something cheap and it’ll suit the bike

Have a vintage seattube (fastened with a seatpost bolt) which I loosened to adjust a saddle, tightened up to max, and it feels like it's bottomed out/got as tight as I can get it without going full hulk on the thing, but seatpost is still loose. A bit hesitant to go full hulk on the thing as I've broken seatpost bolts before, so trying to figure out if I am missing something before I go back and give it more force. It did have someone sitting on the saddle for about a 2 mile journey when I unwittingly left the seatpost bolt too loose, and I'm wondering if the setback post may have potentially reamed out the seattube opening during that time..?