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SUMMER SPORTS - CHALLENGER PROTON

gruber_logo_03Lightweight for power

A tiny electric motor makes it possible: at the push of a button on the grip, an invisible thrust is activated. 100 Watts of additional power make uphill driving easier. A high-performance battery is enough for up to 1 hour and 45 min. of motor-assisted driving. Otherwise, change gears and drive as usual.

Technic:

  • SHIMANO Deore 27-gears
  • Gear change and brakes on ergo grips
  • Quick release system from wheelchair
  • V-brake with brake booster
  • Disc brake
  • 24″ front wheel
  • Fork length: 650, 700, 750 mm

Approx. measurements:

  • Length: 90 cm
  • Width: 60 cm
  • Height: 100 – 120 cm
  • Weight: approx. 10 kg

Standard equipment:

  • Digital speedo
  • Bell
  • Beverage bottle inc. holder
  • Chainguard
  • Steering damper
  • Parking brake

Extras:

  • Halogen battery lights
  • 24″ mudguard
  • Foldable bike stand (for safe parking)