MAXXIS Crossmark | 29 X 2.1 Frame Protection Tool: Park tool BBT-9 or Spokes Cog Size:15t The long sleeves give 6024150422

Tool: Park tool BBT-9 or similar

A small amount of naturally occurring protein assists in prevention of muscle breakdown

6 bolt disc mount pattern

The contemporary outer shell design offers extensive head and brain protection while the 360 Turbine Technology inside the helmet reduces the risk of concussion by up to 30% and rotation forces upon impact by 40%

Ventilation with waterproof /breathable membrane on the inside

MAXXIS Crossmark 29 X 2.1 Frame Protection Tool: Park tool BBT 9 or Spokes Cog Size:15t The long sleeves give 6024150422 Tool: Park tool BBT 9 or similar A small amount of naturally occurring protein assists in prevention of muscle breakdown