Originally Posted by
Tim_Iowa
I'm glad that you like those brakes, but they're not relevant to the OP's situation. He needs medium or long reach brakes, and the BR-6800s are short reach.
By measuring from the center of the mounting bolt to the middle of the brake track ('84 Univega Viva Sport w/27" wheels) on each of the front and back wheels - just in case they were different - I came up with 49-50mm. What is funny is that the front has a recessed mount, and the rear is nutted. Go figure.
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'75 Fuji S-10S bought new, 52k+ miles and still going!
'84 Univega Gran Tourismo
'84 Univega Viva Sport
'86 Miyata 710
'90 Schwinn Woodlands
Unknown brand MTB of questionable lineage aka 'Mutt Trail Bike'
Plus or minus a few others from time-to-time