I use them on my MTB, I still carry spares and tools. They weigh too much. Carry a spare and tools.
HTFU
@andy.w 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.
I use them on my MTB, I still carry spares and tools.
They weigh too much. Carry a spare and tools.
HTFU