Honda XR/CRF50 Model
1585-M, De Coulomb Boucherville, Quebec, Canada J4B 8J7 Phone: 450-655-4855 • 1-800-557-0552 Fax: 450-655-2821 info@elkasuspension.com www.elkasuspension. com OWNER’S MANUAL Rev…
A) Safety Warnings. . . . 2, B) Warranty & Return Policies. . . . 3, C) Suspension Basics – C.1 What is suspension. . . . 4, – C.2 Mini-bike Suspension Specifics. . . . 4, – C.3 Suspension Terminology. . . . 5-7, – C.4 Shock Absorber Components . . . . 8, D) Installation – D.1 Installing the shock . . . . 9, E) Adjustments – E.1 Preload Adjustment. . . . . . 10, – E.2 Compression Adjustment. . . . . 11, – E.3 Rebound Adjustment. . . . . 12, F) Service Work Order. . . . . 13. SUSPENSION. Compression: The stage where the shock compresses under an impact. Emulsion: The oil in the shock has microscopic air bubbles in it. When the oil is heated from passing through the valving holes, the air expands and creates foam and air pockets, called emulsion. When a shock gets emulsion inside, it has a sticky feel (stiction), become very soft and can even lose all damping. Elka Suspension shocks go through a careful bleeding process to avoid emulsion. Frame Clearance: The space needed to avoid contact between the frame and the ground. High-Speed Compression: The damping circuit that controls the shock’s resistance against high-velocity impacts like hitting a rock or multiple small bumps. Low-Speed Compression: The damping circuit that controls the shock’s resistance against low-velocity compression like landing a jump or turning. Negative Travel: The difference between the height of the vehicle at rest with rider sitting on it and the height of the vehicle when the bike is lifted without the wheels leaving the ground. This distance is a portion of the total suspension travel that is used to keep the wheels on the ground when the suspension extends like when hitting holes or between whoops. Preload: The force applied to the main springs by screwing in the preload ring to achieve proper sag, usually mesured in millimeters. Rebound: The damping circuit that controls the shock’s resistance when returning to its initial state after being compressed by an impact. More rebound damping returns the shock slower but increases the chances of “packing”. Less pre- load damping returns the shock faster and provides a bouncy ride. Ride Height: The height of the vehicle when sagged properly with rider seated. It can be adjusted to suit the rider’s personal preference. Sag: The portion of the shock’s travel used when the rider is seated. Proper sag ensures enough negative travel to keep the wheels on the ground and preserve traction. Static Sag: Same as the sag but without the rider on the vehicle. The static sag prevents topping out and provides a more confortable ride. Stroke: The total amount of travel allowed by the shock, mesured at the shock’s shaft. Not to be confused with the total travel of the vehicle. The same shock stroke can provide many different wheel travel depending on the geometry of the vehicle. Travel: The distance between the suspension fully compressed and fully extended. Can be mesured at the wheels (wheel travel) or at the shock shaft (stroke).
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