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Glad to see some progress on the Trek 990 already and so glad it’s gone to a loving home. I can help with details on the front mech if needed as it’ll be the same as my 950. It involves a top pull mech and clamping the end of the cable where the mud guard fixing bolt is on the chain stays.
Below are my retro mtbs from the last year. I’ve sold the GT and the hard rock now, sadly. The Saracen is a WIP for my brother.
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Alban
Joined the ranks retro mtbs with the purchase of this
https://www.lfgss.com/conversations/353684/#comment15517465
It’s a 1992 Trek 990 which is either double or triple butted OX platinum, which is akin to Reynolds 853 I think.
Not planning a full period resto more make do and mend using the parts bin job as it’s going to be my everyday lockup bike.
Planning to replace the bars (One On Mary's) stem (80's quill high rise) and saddle with maybe a Brooks Flyer or B17, tyres something 2"+ that are road friendly as that will be 75% of it’s use.
BB needs a service or replacing.
I have some 7 speed shifters and Shimano adjustable pull ratio brake levers (I forget the model) from a previous GT Timerbline I owned.
I serviced the hubs, the rear is salvable and OK but needs a new axle, so will replace the solid axle with a QR axle. The front hub has pitted cones and is still rough after a service so if I can replace the cones cheaply I might do the cones and bearings. The cups look in suprisingly good condition.
Wheels need truing and a couple of small dinks in the rims need attention.
There was a sheared bolt stuck in one of the seat stay rack fittings. Luckily it had about 4mm of the bolt sticking out as it was too long, which after soaking in plus gas I managed to get a grip of using mole grips and slowly managed to turn it and remove it.
I tapped this fitting in case of damage and then tapped all the M5 holes and put greased bolts in them to stop further corrosion. All the other m5 holes just needed tapping to clean up.
Longer term I have a Surly 700c Cross Check fork which matches the AC and rake and can take quite a wide tyre but needs the canti studs moving and the steerer extending. I’ll probably extend the steerer myself but pay a local framebuilder to add canti studs at the correct location for 559 wheels.
The lugged style the Surly forks matches the lugged construction of the bike quite nicely although I'd prefer a Pacenti style fork like this https://theradavist.com/2014/01/beautiful-bicycle-benedicts-trek-970-650b-shred-sled/ but ££££ and this is supposed to be my everyday runaround!
The top of the seat stays have a nice pantograph TREK.
I might need advice on the front derailleur and getting a left 3 * shifter to match my right 7 * shifter.