Maxxis Crossmark 29 X 2.10 Wire 60TPI Tyre drumbeat21-1825 Hammerhead or Wahoo unit

Hammerhead or Wahoo unit

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and clamps nearly any tube from 23 to 76 mm (7/8" to 3")

With it's Italian La Fonte chamois

all wrapped up in a durable CNC machined 6061 aluminium body

Maxxis Crossmark 29 X 2.10 Wire 60TPI Tyre drumbeat21-1825 Hammerhead or Wahoo unitCrossMark A top performer in dry conditions EXO Protection offered in select models Fast rolling center ridge front or rear Raised side knobs for better cornering The CrossMark is the dramatic evolution of the cross country racing tire. The nearly continuous center ridge flies on hardpack, yet has enough spacing to grab wet roots and rocks. The slightly raised ridge of side knobs offers cornering precision never before seen on a tire this fast. WIRE