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The Evo R is the only economy scooter produced by Evo Powerboards. It sports a shorter stance, smaller engine and less robust design than its older siblings, the Evo 2x, Evo 2 and Evo SPX.

With that in mind, this scooter provides a brilliant platform for upgrade. Without modification, the largest engines with 78mm clutches will bolt right up to this frame. With the addition of a more powerful engine and steeper gearing, this scooter could reach 40mph.

Technical SpecificationsEdit


Belt Reduction TransmissionEdit

Evo belt-chain transmission 1
Evo belt-chain transmission 2

The R uses a unique belt reduction system which outputs to a sprocket for a final chain driven system. Though this transmission closely resembles the Evo two speed transmission the two cannot be interchanged.



Non-standard 6" tiresEdit

Evo r rear sprocket

The R's rear 8" slick with the chain and sprocket attached

Although the R uses a standard 4" split rim, the tires it uses have an unusual 6" diameter. Since the frame is so small, standard 10" tires will not fit on the scooter. 6" tires of the correct width are much more difficult to replace and would be a necessary upgrade in order to effectively ride on grass or loose gravel since the stock tires are tredless slicks.

ControlsEdit

The R comes stock with 3 sets of controls on the handlebars. On the left is the rear brake lever. On the right is the front brake lever and throttle lever. Each control operates a bowden cable. These types of cables are commonly used on bycicles and are easy to find and replace.


BrakesEdit

The braking system on the R is managed entirely from the handlebars through the application of pressure to disc brakes on each wheel. The front and rear brakes are nearly identical. They both use a pulley to squeeze shoes onto the brake disk on scissor like cantilevers.

These brakes are a non-standard (see | Disc Mounting Standards) mounting and will not accept industry standard discs calipers without fabrication.

ThrottleEdit

The throttle is a simple finger lever which operates a bowden cable which is routed down through the support pole and deck to the carburettor of the engine.

AdjustmentsEdit

The R's belt/chain system is controlled by two adjustment mechanisms. The tensioner system for the transmission belt uses a set of cams which the top of the transmission rides on. This will most likely only need adjustment when a belt is replaced. The [[[1-touch tension system]]] for the long chain which stretches to the rear wheel is manipulated by a bolt located underneath the deck of the scooter. One can simple tighten or loosen the system by tightening or loosening this belt.

ProductionEdit

United StatesEdit

ReliabilityEdit

Things you'll never have to replaceEdit

You may eventually have to replaceEdit

You should immediately replaceEdit

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