You are reading a single comment by @🅑🅐🅣🅣 and its replies.
Click here to read the full conversation.
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
🅑🅐🅣🅣
Come to think of it, rear end spacing is only half the battle...
With the Day One frame I used to have, in order to run it fixed I had to choose between running a spaced out 'track' wheel with circa 42mm chainline or using a disc rear hub flipped round with a bolt on cog which had a wider chainline.
I don't think I had chainstay clearance to do the former (it'd have also meant finding a longer axle for an unbranded sealed bearing hub, not easy) and the latter gave a rear chainline that was wider than the outer chainring position on the GXP road crank I was using.
I opted for the latter and had to fit washers between my crankarm and chainring to correct the chainline.
Either option was sub par for a bike which was to be set up fixed for the forseeable future, neither would have made for a quickly or easily swappable setup.
The hub I was using was a trials hub so it had a freewheel thread on the other side but the chainline on that was different again. A disc compatible cassette hub could be set up to give the same chainline fixed and free but to go from that to a geared set up would require changing the front chainline.
On the other hand, it'd take around a minute to swap a flip flop fix/free track hub in my Pompino. Had I not cut the brake posts off of mine*, a further minute or two and I could fit/remove the rear brake as appropriate. Infact, I even have a 120mm spaced hub that takes a 5 speed screw on freewheel and a DMR hanger tug should I ever want to run gears on my Pomp.
*I've only cut the post part off, I intend to drill and tap the bases of the brake mounts so I can have removable brake posts on my sub £100 frame.