Impact 19" Athmos Unicycle - Red

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product description

Impact’s Athmos features all of the small details and performance you'd expect to see at a higher price tag, but offered in an affordable ready to ride trials package.  Durable components will give any rider confidence in choosing the best line you can ride.

  • Features:
  • Saddle: Impact Athmos, with lift handle
  • Seat post: 25.4mm x 300mm steel, welded rectangular mounting bracket, 4 hole - Click Here for Replacement
  • Seat post clamp: Impact (red) single bolt, aluminum
  • Frame: Impact Athmos (black) steel, semi round flat top, stamped bearing clamps - Replacement Not Available
  • Hub/axle: Impact ISIS (white) 36H, high flange, crMo spindle, 100mm center bearing to center bearing - Click Here for Replacement
  • Spokes: 14G stainless black (164mm in length for 3X) with silver nipples - Click Here for Replacement
  • Rim: Impact Athmos (red) 36H, 47mm wide, reinforced eyelets, doublewall, offset spokes, aluminum
  • Rim strip: Rubber - Click Here for Replacement
  • Tube size: Innova 20" x 2.125" - Click Here for Replacement
  • Tire: Bike Trial 19" x 2.5". This is a specific tire for this rim. A regular 20" tire cannot fit this rim. -  Click Here for Replacement 
  • Crank arms: Impact Athmos (black) 138mm, aluminum, 9/16 threads - Click Here for Similar Replacement 
  • Pedals: Wellgo Block (black) steel spindle, plastic, 9/16" threads
  • Bearings 42mm x 22mm - Click Here for Replacement
  • Approx. cycle weight: 13 lbs


  • Recommended leg length sizes for unicycle:
  • Standard seatpost: Minimum - 74cm (29.1"), Maximum - 86.5cm (34.1")
  • Cutdown seatpost: Minimum - 62.5cm (24.6")
  • These sizes are measured from crotch to floor wearing shoes



Minimum Inseam Length:
25" (64cm)
Type - Unicycle:
Type - Seatpost Clamp:
Single Bolt - 28.6mm
Seatpost - Diameter:
Color - Frame:
Color - Rim:
Type - Crank:
Crank Length:
Type - Pedal:
Bearing Size:
Cycle Weight:
13 lbs.
Wheel Size:
19 inch