SAFETY RULE #1 OF ADAPTIVE MOUNTAIN BIKING IS NEVER EXPLORE NEW SINGLE TRACK FOR THE FIRST TIME ALONE. BE SAFE. NOW GO RIDE!


This rating system does not describe difficulty level. It only identifies obstacles and indicates if a support rider is needed. For all other information (such as technical features, climb difficulty and staging) consult your preferred trail information resource. Further information can also be found in our trail blog and trail videos.

⚪️AMTB 1 - No obstacles exist. No support rider needed.

🔵AMTB 2 - some Obstacles Exist. Support rider recommended.

⚫️AMTB 3 - Major obstacles exist. support rider needed.

WARNING: Trails change and the information here can potentially become out-dated. If you have a suggestion, PLEASE let us know!

NOTE: A trail requiring more than one support rider or separation from a rider’s equipment, is deemed expedition level and therefore “impassable” for AMTB. Of course, anything is passable with a crew, gear and proper planning, but this project’s goal is to direct adaptive riders onto trails and routes that provide the best experience for mountain biking, not mountaineering.


Rating on a Curve

To serve the largest number of trail users, we rate trails on a curve. When rating trails, we consider the average rider based on a formula of Ability Level combined with Equipment Capability and make our best estimate on what 70% of riders are capable of. If you fall into the extremes, this rating system may not fully apply, but can still be useful.


aMTB Classification

For the safety and inclusion of all user groups, due to the e-assist nature of adaptive equipment, it must be classified and regulated. Our rating system refers to Class 1 & 2 aMTB’s.

  • Class 1 - No Electric Assist

  • Class 2 - 750W or under Pedal Assist (throttle ok)

  • Class 3 - Above 750W Pedal Assist (throttle ok)

  • Class 4 - Throttle Only (any wattage)


equipment capability

Certain criteria increase the capability of adaptive equipment to navigate trail dilemmas. These include, but are not limited to:

  • Power Assist

  • Suspension

  • Clearance

  • Ability to angulate

  • Less Width