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London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
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si_mon628
j_p_
After driving myself insane trying to get hope rx4s aligned without rubbing I stumbled across their x2 calipers which now come in flat mount. The x2s are only dot oil compatible so I swapped the seals for some Shimano ones of the same size and am now running these with grx levers with no issue. Clearance is tight but better than rx4s