First time here. Am thinking of upgrading my '86 Schwinn Peloton's brakes, shifters, and derailleurs with lightly used indexed Tiagras including brifters. I ride the bike so much that I really want to feel safe in traffic and see what lighter, modern components can do for it. I'll keep the original stuff and restore them to the bike if I decide to sell or hang on the wall.

Any problems with my plan that any of you can see out there or is it too much trouble? Thanks. JM

  • 1
    Is the hub even compatible? You want to go from down tube shifter to brifter indexed Tiagras? That is probably too much trouble.
    – paparazzo
    Feb 29, 2016 at 17:51
  • 1
    You're not going to notice a weight difference -- your body weight variation will probably be higher than the weight saved.
    – Batman
    Feb 29, 2016 at 19:11

1 Answer 1


You will need a new rear hub that can fit a modern cassette, and to spread the rear fork for the wider hub to fit.

Also, you need cable stops that fit at the place of down tube shifters. They may be included in the groupset, but if not you need to buy them separately.

  • Thanks everybody. I'd already upgraded rims/hubs/cassette to '06 Ultegra's and they fit the rear forks fine. From 12-20 speeds w/friction. Rides great. Thanks for the cable stop pointers. We'll see.... Feb 29, 2016 at 22:59

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