Most carbon steerers come with a recommendation to leave 2-3mm above the stem and use a 5mm spacer on top. Alloy is safe to have below the stem.
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London Fixed Gear and Single-Speed is a community of fixed gear and single-speed cyclists.
@TvH
Most carbon steerers come with a recommendation to leave 2-3mm above the stem and use a 5mm spacer on top. Alloy is safe to have below the stem.