162.22 USD (25,070 JPY)
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Product detail
[Spring Part No] 1603
[Fork Oil No. / Oil Level] SAE15 / 130mm
[Preload adjustment] No adjustment
[Sag Value] 26mm
[Compression adjustment] No adjustment
[Rebound adjustment] No adjustment
**There may be changes in product specifications due to the manufacturer's reasons..
* The image is only for reference. The image shown may differ from the actual product.
HYPERPRO Suspension Spring
Suspension springs with Constant Rising Rate"" designed by Hyperpro. "
The spring rate constantly changes to follow the movement of the suspension.It is not too soft and not too hard, and has the power to hold on even under heavy cornering and emergency braking.
●The change of the caster at the time of braking before a corner is optimized, and it makes it easy to move to the next operation.
It absorbs small gaps during cornering and eliminates vibrations that interfere with the rider.
●Unlike normal springs, these springs do not have a constant spring rate and therefore do not resonate.
●The springs are wound by a computer-controlled machine tool and then shot to remove minute surface scratches that can degrade performance. In addition, after the completion, the performance of each unit is inspected by a tester.
●In the Netherlands, the home of Hyperpro, all emergency bikes are equipped with Hyperpro springs.
Performance Comparison by Spring Type
Link System Curved Spring (Hyper Pro)
The rate always changes and rises in accordance with the suspension movement (stroke) to support the comfort in the early stage of the stroke and the stepping at the end.It is not too hard and not too soft.
Linear Rate Spring
As the rate of the spring does not change during the whole suspension stroke, the spring is prone to be too hard or too soft.It is suitable for stable conditions such as a circuit.
Two-Step Progressive Spring
It has two rates that vary with the suspension stroke and compensate for the shortcomings of linear rate springs.The gradual rate change causes discomfort in handling.
■HyperPro
The fine (soft) part absorbs small gaps in the road surface and improves the ride comfort.
■Linear rate
Stiff springs are uncomfortable to ride, and soft springs cause problems such as bottoming out under heavy load as described in (3).
■HyperPro
It gradually increases the resilience and sinks smoothly, which makes sense for riding.
■Linear rate
Because it sinks with a constant repulsive force instead of gradually, it does not follow the changing road surface.
■HyperPro
Unlike linear-rate springs, these springs can flexibly combine softness and stiffness, so they can hold their ground to the end under high loads.
■Linear rate
The reverse of (1).Since it is impossible to combine softness and hardness, the properties of the material tend to be one or the other.
The Hyperpro spring is wound at an unequal pitch and has a "constant rising rate", which means that the spring reacts softly to the road in the early stages of the stroke to maintain comfort.The spring rate increases at the end of the stroke for full braking and high speed cornering.
In addition, the safety margin at the end of the rate prevents the tire from bottoming out and locking.This "constant rising rate" is set for each model, and the seamless spring rate realizes a smooth ride.
Points of Attention
* If there may be an instruction manual included, it will be written in Japanese.
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