Impact 20" Sylph Unicycle - 42mm

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product description

The Sylph has been developed by some of the top riders in the world to give the ultimate in riding performance.  With its high volume 20" tire, the Impact Sylph offers fantastic control and grip while performing a variety of skills and transfers. The tire is mounted to a brand new 20" 47mm wide rim which gives the tire an amazing profile and helps minimise pinch flats.The Reagent frame has a square top crown with a large and secure foot placement area for frame tricks and coasting. The Sylph also comes with the brand new 118mm Eiffel cranks.


  • Saddle: Naomi ultra thin saddle - Black - Click Here for Replacement
  • Seat post: Impact 'AllinOne' Seatpost 270mm (27.2mm) - Click Here for Replacement
  • Seat post clamp: Impact single bolt, 31.8mm white - 
  • Frame: Impact 20" (anodized black) 'Reagent' flat crown with 220mm long seat tube, 6061 series aluminum with 42mm machined maincap bearing housings
  • Hub/axle: Impact 36h mid flange, ISIS crMo spindle, white - Click Here for Replacement
  • Spokes: 14G. stainless black (171mm in length for 3X) with brass silver nipples
  • Rim: Impact 47mm wide, double walled, white - Replacement Not Available
  • Rim strip: Impact vinyl, white - Click Here for Replacement
  • Tube size: 20" x 1.95 - 2.125" - Click Here for Replacement
  • Tire: GMD G633 BMX tyre - 20" x 2.4"
  • Crank arms: Impact Eiffel Cranks - 118mm
  • Pedals: Impact 'All Bran' Pedals - White
  • Bearings: Impact 42mm x 22mm wide bearing system - Click Here for Replacement 
  • Approx. cycle weight: 10.14 lbs or 4.6 kg.


Minimum Inseam Length:
29" (74cm)
Type - Unicycle:
Type - Seatpost Clamp:
Single Bolt - 31.8mm
Seatpost - Diameter:
Color - Frame:
Color - Rim:
Type - Crank:
Crank Length:
Type - Pedal:
Bearing Size:
Cycle Weight:
Wheel Size:
20 inch