About Piper Moto
John Piper founded PiperMoto in 2013 to design and build bikes.
His individual approach combines precision engineering with hand built artisan methods.
The inspiration for PiperMoto comes from an ambition to create extremely functional and desirable products. John’s background in motorsport gives him access to a network of top class manufacturers and materials.
Using modern design methods with a craftsman’s approach, he draws on his engineering integrity and attention to detail on every aspect of the machine.
j Series
The J SERIES is PiperMoto’s first project. John describes it as a Super Scooter; a hybrid of contemporary motorcycle engineering performance, with classic scooter looks and styling.
Built to order, each machine is finished to a personal detail specification, and carries the customers individual chassis number.
J Series - technical specification
Engine: KTM LC4 Duke
Displacement: 690 cc
Power: 67.05 Hp (48.9 kW)
Performance: 0–60mph 4.0secs, top speed 120mph
Dry weight: 160 Kg
Weight distribution: 50-50
Max lean angle: 52°
Frame: Chrome molybdenum tubular steel space frame, TIG welded
Bodywork: Carbon/epoxy woven composite pressure cured
Ignition system: Contactless, fully electronic with digital ignition timing adjustment
Lubrication system: Semi-dry sump with 2 Eaton oil pumps
Cooling system: Liquid with twin high efficiency aluminium core radiators and electric thermostatically controlled cooling fan
Exhaust: Stainless steel with catalyser
Gearbox: 6 Speed electronically shifted by GCU software and handlebar finger paddle switch
Starter: Push button electric
Transmission type: O ring roller chain
Front tyre: 120/70 X 17″
Rear tyre: 160/60 x 17″
Battery: Gel type maintenance free 12V x 8.6Ah
Wiring loom: Mil spec ruggedized loom
Bore x Stroke: 102.0 x 84.5mm
Compression ratio: 11.8:1
Fuel tank: 14Ltrs with internal submerged electric fuel pump
Fuel system: Electronic Injection
Front brake: Brembo 4 piston radial caliper with 320mm dia disc
Rear brake: Brembo single piston floating caliper with 240mm dia disc
Front forks: KTM WP 43mm dia. upside down twin telescopic
Front geometry: Rake 25°- Trail 100mm
Front wheel travel: 150mm
Rear suspension: Concentric spring and ExeTC remote 2 way damper reservoir operated by push rod and rocker, with rising rate
Rear wheel travel: 120mm
Wheelbase: 1500mm
Gallery
The story of the J Series bike through its creation.
Background Information
John Piper is an engineer and designer with a career in motor racing and vehicle design at the highest level.
Contact Piper Moto
For any enquiries about the J Series please contact:
John Piper
Telephone: +44 (0) 7802 243 152
Email: john@pipermoto.com
or contact Piper Moto using the form below:
Acknowledgements
Miles Dutton – Brand and product positioning
Steve Everitt – Styling design
Greg Taylor, GTME Ltd – suspension geometry and FEA analysis
Peter Morgan, Overmarsh Engineering – Procurement and Bill of Materials structuring
University West of England
City of Bristol Skills Academy
Lee Deverill – Branding design
Alison Hill, IDPR ltd – PR consultant
Ross Curzen-Butler – Digital media
The Chemistry Set – Website