Nimbus Hatchet 27.5" Mountain Unicycle

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product description

The Nimbus Hatchet builds on the amazing platform that the Oregon created, and moves it onto the next level. The frame comes with the brake installed on a new precision IS mount. The hose is also clipped in place with special red aluminum clips. The main challenge with “Fat-Uni’s” is the requirement for a super wide frame. This can make it uncomfortable to ride as it catches the riders' legs. To resolve this the Nimbus Hatchet moves the frame behind the riders legs giving maximum clearance. 

One of the main advantages to larger wheels in general, is the rolling speed. This comes down to larger wheels having a smaller angle of approach for getting over obstacles and bumps / variations in trail surface. They will also carry more momentum due to the increased rotational weight, so maintaining speed is a little easier. The smaller the wheel, more maneuverable it will feel, and the reduced weight will also help with acceleration for when short bursts of speed are needed.

  • This frame will hold a tire up to 26" x 5.05", 27.5" x 4" and 29" x 3.0".

    Note: Michigan Trail Tested, Mother approved!


    Saddle: Nimbus (black) with front lift handle and brake mount 
    Seat post: Nimbus 25.4mm x 300mm aluminum, welded rectangular mounting bracket, 4 hole
    Seat post clamp: Nimbus red double quick, aluminum, 31.8mm 
    Frame: Nimbus Hatchet 26"/27.5"/29" (gray) aluminum with 42mm machined maincap bearing housings, welded I.S. disc brake mount
    Hub/axle: Nimbus ISIS drive Disc (black) 32H, hardened CrMo spindle with steel flanges, 125mm center bearing to center bearing
    Spokes: 14G. stainless black (Disc side 278mm 3x, Non-disc side 280mm 3x) with red nipples 
    Rim: Nimbus Hatchet 36H, 80mm wide, single skin with cutouts
    Rim strip: Sun rim tape, black 
    Tube size: Rubber 27.5" x 3 - 5", presta valve
    Tire: Maxxis Minion FBR 27.5" x 3.8" 120tpi Tire 
    Crank arms: Nimbus VCX Plus 170 (114/142/170mm)
    Pedals: Nimbus black plastic with removable pins CrMo axle with 9/16" threads
    Bearings: 22mm x 42mm x 12mm 
    Brake: Hydraulic Disc Brake 180mm Rotor (black) 
    Approx. cycle weight: 15 1/2 lbs.

           Assembly Instructions Here                   Assembly Instruction Video Here


Minimum Inseam Length:
Type - Unicycle:
Type - Seatpost Clamp:
Double Quick Release - 31.8mm
Seatpost - Diameter:
Color - Frame:
Color - Rim:
Anodized Black
Type - Crank:
Crank Length:
Type - Pedal:
Bearing Size:
Cycle Weight:
15 1/2 lbs.
Wheel Size:
27.5 inch