Does the spider not catch before the chainring?
err yeah you're right actually, bigger chainwheel may well be OK. The clearance for the spider is just, just OK - so I guess on some frames it would catch depending on manufacturing tolerances.
@Kolle started
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.
err yeah you're right actually, bigger chainwheel may well be OK. The clearance for the spider is just, just OK - so I guess on some frames it would catch depending on manufacturing tolerances.