To Order
Rear Sports Spring
SKU: S128041SPR
To Order
¥21,560
This item is shipped from Japan on order. Delivery takes 2 to 4 weeks. Shipping cost is calculated separately.
The price shown is for the product only. Our manager will inform you of the shipping cost after placing your order.
Specifications
Spring: Beatrush Sports Spring Rear 4.6 kg/mm (-40mm) : S128041SPR
Category:
Suspension
Description
Development started from just that phrase!
Isn't it true that enjoying circuit driving isn't just for advanced users who mainly drive on circuits?
For intermediate users or those considering starting, aren't full-fledged height-adjustable suspension kits costing hundreds of thousands of yen too expensive?
Height-adjustable kits are stiff and can be harsh for daily driving or travel, and there are times when you might have elderly passengers or small children, right?
When trying circuit driving with commercially available standard-shaped shock absorbers and springs, the spring rate is too low, causing excessive body roll, making it scary rather than fun!
From there, development began on higher-rate springs to match existing shock absorbers.
For the shock absorber, we chose the standard-shaped lowering shock absorber [KYB Lowfer Sport].
Considering ride comfort, several prototype springs with different rates were made to check ride height and comfort, then repeatedly taken to the circuit for driving tests.
October 2011, a certain sunny day
Honjo Circuit, Saitama Prefecture
Tires Fitted: ADVAN NEOVA AD08R 215/40R17
Reference Lap Time: 48.6 seconds
(1.2 seconds slower than with a height-adjustable suspension kit)
Isn't it true that enjoying circuit driving isn't just for advanced users who mainly drive on circuits?
For intermediate users or those considering starting, aren't full-fledged height-adjustable suspension kits costing hundreds of thousands of yen too expensive?
Height-adjustable kits are stiff and can be harsh for daily driving or travel, and there are times when you might have elderly passengers or small children, right?
When trying circuit driving with commercially available standard-shaped shock absorbers and springs, the spring rate is too low, causing excessive body roll, making it scary rather than fun!
From there, development began on higher-rate springs to match existing shock absorbers.
For the shock absorber, we chose the standard-shaped lowering shock absorber [KYB Lowfer Sport].
Considering ride comfort, several prototype springs with different rates were made to check ride height and comfort, then repeatedly taken to the circuit for driving tests.
October 2011, a certain sunny day
Honjo Circuit, Saitama Prefecture
Tires Fitted: ADVAN NEOVA AD08R 215/40R17
Reference Lap Time: 48.6 seconds
(1.2 seconds slower than with a height-adjustable suspension kit)
