Quote:
Originally Posted by
RidderAllard View Post
Sorry i forgot to mention i will also put on a 7 or 8 sp freewheel haha
Originally Posted by
dedhed
OP, yeah, so,
7 speed cog spacing is 5mm and 8 is 4.8, iff'n you're gonna screw with this:
you'll need to decide 7 or 8 spd (8 spd then means, as noted above - 130 rear spacing, which then allows 9 & 10 also)
Then get the appropriate rear wheel - 126 for 7 (depending on hub, you might be able to find a replacement axle and then also spacers for axle, to make a 126mm - re-dish wheel, and so on...), or 130 wheel for 8+
Then pick the shifter/brifter appropriate for the 'system'
Then if you have found/made a proper width wheel for the 7 or 8 spd shifter system you've decided on - you will have also decided and selected between 'freewheel' and 'cassette'.
If shimano cassette, and 8 spd, then you'll have to determine if it's uniglide or hyperglide hybrid - different cassettes... if 7 spd cassette, then you'll certainly do some searching to find a uniglide 7 spd cassette... or use an 8 spd cassette, ignore one cog... and hope the rest shift ok.
Then your choice for Rear Derailleur can be made from RDs which will work with your shifters...
...oh, you will prolly have to determine if your current chainrings will accept 7 or 8 (or more cogs...) chain width, and be able shift at all... older 5 spd rings are often too wide/thick to shift reasonably often with 8 spd, 7 spd can be borderline. newer replacement chainrings for old cranks may work - if they (either 2 or triple rings) fit the old cranks...
or enjoy the bike as it currently sits...
most riders who convert to 'modern' will do full drivetrain transplants (and coldset the rear triangle on steel - would not screw with other frame stock...)
If you don;t mind going with a Full change on a Drivetrain/Braking system, it can be a lot of fun, and a nice frame usually ride very nicely on the updated stuff...
80's Titan, 57 cm, Columbus SPX
Ride On
Yuri