Mystery Design

Mystery Designs is the home of the Tiltster tilting mechanism, the world’s first “tilting” Independent Suspension Kit for motorcycles. The Tiltster is an upgrade option for our independent suspension which allows the trike to Tilt into and out of the corners automatically. This option can be added in the future or to start.

Mystery Designs Independent Suspension and Fixed axle Trike Conversion Kits are compatible with ALL belt or chain driven motorcyles. The kits work well with the larger bikes such as, any 1984 and up Harley Davidson, Yamaha Roadstar, Roadliner and Stratoliner, or 1988 and up Honda Valkyrie, Goldwing or VTX. Our trike kits can be easily adapted to fit all belt or chain driven motorcycles as long as the bike has enough power to pull the kit. The ISS is best suited for a 1000cc or greater motorcycle and the Fixed axle is best suited for a 750cc or greater motorcycle.

Dividers-2Independent Suspension System

The engineers at Mystery Designs developed a suspension system with the help of a NASCAR engineer that specifically addresses correct roll-centers for high speed cornering. This has enabled us to produce an independent suspension system that rides softly and corners aggressively without lifting the inside tire. Our independent suspension system was built and designed for enhanced performance and greatly improved handling. Our suspension systems will revolutionize the perception of trikes as being cumbersome, awkward, and even dangerous. No Modification to your motorcycle frame needed, swingarm will be the only part modified. The fixed axle is also available with outboard brakes (not pictured). Durable, strong and simple for the street rodder or the economy triker.


ISS Kits Standard Features:

  • 4 Progressive Suspension shocks
  • 4 Piston Wilwood brake calipers
  • 13″ x 3/8″ thick brake rotor
  • Mounting brackets
  • Made from 356T6, 6061 aluminum and 1018 steel with grade 8 bolts
  • Multiple hub bolt patterns
  • Available in chrome & polished, bare metal & polished or bare metal & plain
  • Tilt option can be added later
  • Use stock belt and pulley
  • Limited lifetime warranty

Dividers-2Fixed Axle Suspension

Starting at $3200, the Fixed axle will convert any belt or chain driven motorcycle into a trike in hours. The 41″ fixed axle provides a more stable ride fopr most applications. The 33″ fixed axle is less expensive but generally requires wide tires with “deep dish” or reverse offset wheels to maintain stability. Our Fixed Axle has the same center section as the independent suspension so it can be converted into an independent suspension later down the road. The system will use the stock chain and sprocket or belt and pulley. It uses the same 4 piston Wilwood brake and 13” rotor, the largest in the trike industry.


33″ Fixed Axle


41″ Fixed Axle

Fixed Axle Kits Standard Features:

  • 4 Piston Wilwood brake calipers
  • 13″ x 3/8″ thick brake rotor
  • Made from 6061 bilet aluminum and steel with grade 8 bolts
  • Available in chrome & polished or bare metal & machine finish
  • Use stock shocks, belt and pulley
  • Limited lifetime warranty


The Tiltster by Mystery Designs is the world’s first Trike Kit that “tilts” into turns like bikes do! When this optional “tilting mechanism” is added, it allows for a new level of stability in handling and the thrill of riding a bike. The Tiltster aids in the steering of a trike by breaking the steering similar to a motorcycle, which will practically eliminate having to steer the trike into the corner. It will automatically lean into the corner with our revolutionary automated control system.

This optional Tilting Mechanism can be added to ANY of our independent suspension systems at any point. The Tiltster will work on all of our custom trikes and almost ANY other motorcycle the suspension will work on. Call today to add this feature to your bike.


Work Involved:
  • BMW
  • Full Conversion Trike Kits
  • Harley-Davidson
  • Honda
  • Honda Goldwing
  • Indian
  • Kawasaki
  • Kits for Bike Make
  • Mystery Design
  • Ridley
  • Suzuki
  • Triumph
  • Victory
  • Yamaha
Mystery Design