I just acquired this Ibis tandem that was built in the late 1980s. It has 26-inch wheels and 130 mm spacing. The bike is 25-years old, but beautifully made and in excellent condition.
What, if anything, should I do to upgrade this tandem?
The brakes don't seem very powerful. The front is a Shimano cantilever and the back is a Shimano U-brake under the chain stays. Should I upgrade the front to a V-brake, add an Arai drag brake, or leave the brakes alone? Will a drag brake fit on a 130 mm hub? My stoker and I weigh a combined 260 pounds.
At 130 mm, the rear dropouts are narrow. Should I cold set the frame to widen the rear dropouts to 140 or 145?
Would you upgrade the drivetrain? The rear hub is Shimano XTR with a 7-speed Uniglide cassette. The shifters are Shimano bar end shifters.
Should I get a suspension seat post for my stoker? Do you have any brand recommendations?