Marin Rift Zone Carbon 2 2024The Marin Rift Zone is Marin 's most speed oriented MultiTrac bike, created for the rider looking for the speed and roll over capabilities of 29 wheels in a trail capable package. Long, low, and slack trail geometry is more aggressive than an XC race bike for more control at top speed, and more fun while chasing seconds. Product Marin Rift Zone 29 Carbon 2 Bike Model Year 2024 Riding Type Trail Rider Unisex Sizes and Geometry SM MD LG XL Wheel Size