![]() DEMON X DETROIT 2020 ![]() ![]() 1/2 Price Options ![]() At WPB we like to keep ahead of the competition. That's why you will find all the latest developments in pitbikes are incorporated to our range before anyone else. Stomp have EXCLUSIVELY developed the new DETROIT 170cc The Detroit 170cc is the next stage in pitbike engines, the Detroit will be pushing the established Race Class Engines to a whole new exciting level. The Detroit will be exclusively fitted to WPB Stomp and Demon bikes. The DEMONX Detroit is factory Engineered and Dyno Tested and Race Tuned to include an Oval Big-Bore Exhaust system for a Power delivery to your DEMON Rear Wheel. Our WPB Race Sponsored riders agree... "if you want to push the limits and redefine the Open Class Race series then this is a Bike that will get you noticed, everyone now must consider the DemonX 170 XLR2 Detroit TTR as the new Race Class" The DEMONX 170 XLR2 Detroit 170 TTR now fitted in the WPB frame and is the only and exclusive frame that's been Race Tested & Dyno Proven to handle the awesome Power of the Detroit 170 Race Tuned Engine. Specifications ![]() Engine STOMP Detroit 170 Engine Mikuni Race Carb with 2 stage race foam filter N1234 all up gearbox External oil filter High Capacity Race "Rad" style oil cooler Heavy Duty standard KTM style kickstart Race CDI High Capacity Race Ignition coil Frame Exclusive Race Engineered Race Geometry Frames New HiTor SuperSwing Alloy Swingarm System Swingarms includes provision for High Torsional strength wheel spacers and SuperDry Sealed Wheel bearings High Impact Lightweight Sumpguard New TTR Style Plastics Suspension Demon X High Rate Loading Rear shock 735mm Forks SuperSwing Frames/Swingarms to take 17/14 wheel upgrades Replaceable Steel SuperShock Shock pivot bearings Wheels and Tyres 14"rear 17" front Demon MX Tyres SuperStrong and Light Steel Rims SDG pattern SuperStrong Hubs Recessed & Sealed SuperDry Long Life Wheel Bearings Optional 12-14 Wheels Brakes Discs 210mm Front and 190mm Rear Oversize Single Pot Front and Rear Disc brakes Steel Braided Hose Lines EBC pattern pads front and rear Rear Brake Snake Cable DriveChain KMC 420 pitch Chain 41 tooth rear sprocket 15t front sprocket Wrap around SuperSlide Swingarm Chain Sliders New SuperGuard Rear Shock Mud Deflectors Bars & Controls Titanium Alloy Minibike Pro Taper style Bars New Strengthened Solid Forged Alloy Levers Soft Grey SuperGrip Bar Grips Foldback Gear Shifter Heavy Duty Kickstart Alloy Fuel Cap and Reinforced Poly Resin Tank So Whats New? ![]() Traditional Rocker ![]() Answer No 1 - Roller Rockers You may ask why hasn't anybody just increased the capacity of a pitbike engine more than 160cc ? The answer is technical but with the help of our WPB Race engineers we will try to explain. The Extra 10-15cc over a standard stock engine requires a major engine head rethink, the valve springs have to be uprated a considerable amount, this puts extra pressure on the cam and increases the drag on the engine the effect is a diminishing return of power for the extra CC's added. The Detroit 170 Cam followers have rollers fitted instead of metal pads, this greatly reduces friction and frees up huge chunks of Power. Also the Detroit has an Aggressive cam profile, rapid valve opening requires steep cam profiles and that profile has to be followed exactly,without error. The Roller Rockers of the Detroit together with the heavy weight valve springs means that we are exclusively able to provide Pitbikes to customers with a factory fitted 170 cc engine. When you consider the aftermarket retrofit of converting a 150cc or 160cc to a 170cc the costs are huge. New Barrel, New Head, Gaskets Time and Labour £££'s Detroit 170 Customers will now be able to ride the biggest Engined Pitbikes in stock form. No more expensive Retro Fit Head Conversions are Required. The Detroit 170 cc is Here and its putting that power down in the dirt, exactly where you want it, MORE POWER to get you those Race Wins. Answer No 2 - Uprated Valve Springs ![]() As we mentioned earlier The Detroit 170 cc has an Aggressive cam this cam profile needs to be followed accurately. To do this the Valves springs have to be uprated considerably. Answer No 2 - Uprated Aggressive Camshaft |