If you've bought them just use them, you'll be able to run lower pressures with wider tyres, which give more comfort and protects the wheels, epically important if you'r heavily loaded. 37 MM is not that wide after all.
@TheBrick(Tommy) 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.
If you've bought them just use them, you'll be able to run lower pressures with wider tyres, which give more comfort and protects the wheels, epically important if you'r heavily loaded. 37 MM is not that wide after all.