Runaway Urban Assault
Added · Updated
♥ 25 likes
NEWLY UPDATED SPRING 2016
After a disappointing failure to get the bike ready for the Dirtquake USA event last summer, the Runaway has been in hiding, hibernation, and finally training/tuning for a big comeback this season. An MHR Replica 50cc cylinder proved finicky and self destructed shortly after showing promising initial results, and was replaced by a larger liquid cooled cylinder with something like a 46mm piston. I selected the 70cc Speedfight from the dropdown menu as it appears to be the closest match. A Stage 6 clutch from SIP Performance finally brought the requisite stall needed to matters out back, enabling spirited launches that are still controllable. Overall drivetrain balance and engagement is getting really good now with 15g +/- a gram or two up front (DR Sliders always) and the red contra spring working very well with the new clutch. Later this summer we'll put it on a Dyno and see what kind of numbers we can produce.
Anyway, thanks as always to the talented and kind Michael Nazaroff for helping me make this bike the funnest money pit I own.
Specs not listed:
Variator: Stock w TJT ramp welded to fit
Weights: 15g Dr. Pulley sliders
Clutch Contra: Red Malossi Spring
Belt: Gates AX31
Gearing: Reverted to stock gears (from PX50 race)
Front Suspension: '03 Marzocchi Monster T
Wheel Travel: 6.7in/170mm (Preload, Rebound, Compression, High Speed Compression)
Rear Suspension: Fast Ace CRF50 11.5in monoshock-Wheel Travel: 5.5in/140mm-(Preload, Rebound)
Intake: Trickmetric Dio 4 Petal-Reeds: .35mm Carbon
Cockpit: RaceFace/Truvativ/Demolition
Pedals: VP Beartraps
Tires: Front: Hidenau Knobby (Treats), Rear, Vee Rubber Knobby (Treats)
Plastics: CRF50 F/R fenders
FAQ:
Does it have 12v electricals? A: Yes
Is that a starter button? A: Yes
Still running oil injection? A: ALAS NO LONGER
Does it do wheelies? A: Almost too many
Take it off any sweet jumps? A: Just little ones ;)
How fast is it? A: TBD, north of 50mph's
Want to sell it? A: Nah, but thanks!
Parts
engine
- Honda NU50M
- Peugeot Speedfight 70cc 77
- Stock Crankshaft
exhaust
carburetion
transmission
- Stage6 Torque Control
Tuning
Main 195
Will Childs — 12 years, 6 months ago
Saw this bike at the spring uphill battle rally 2013. Super sweet ride. Looks fun to ride and super comfortable. Those front forks are so beefy. Nice work!!!
WillD — 12 years, 10 months ago
I like comparing this and Mark Tway's David Choppafeild. You took the chopped version and made it an enduro, he took the enduro version and made it a chopper. And both turned out much for the better
Nash Wiley — 13 years, 2 months ago
best urban EVER!
Theodore Rael — 13 years, 4 months ago
this is an inspiration for me. thanks!
Christopher Hoke — 13 years, 5 months ago
most urbane urban
Team Dirtped — 13 years, 6 months ago
I wouldn't lie to you Aaron
Aaron Fogg — 13 years, 6 months ago
Are those forks really from a MTN bike ? Holy shit this is HOT.
Matthew Kolb — 13 years, 6 months ago
Great job Steve!
terry dean — 13 years, 6 months ago
love it!
randall widhalm — 13 years, 6 months ago
this is mean looking. not gana lie i love the fork idea i never would have thought of it