Barell EdgeFlex Springs for optimized RC Drift performance.
EdgeFlex Spring is characterized by its excellent balance of “kick-off” and “load-bearing” during drifting. Version 1.0 is designed to maintain load without being repelled, even when using soft oil. This spring can be used on both the front and rear, and using it as a front and rear set allows you to fully experience its benefits. As a competition-oriented spring, it aims to prevent large body rolls and retain the load applied, providing a solid and controlled feel.
Since this spring has significantly different characteristics compared to general ones, it is recommended to use it as a front and rear set. Also, for the best results, it is advisable to use it without applying preload initially. For lightweight chassis like the RDX, the 8-coil (Ver.1.0) springs are recommended for both the front and rear!


BRL-SG01 EdgeFlex Ver.1.0 (Soft)
- Spring total length: 27mm
- Wire diameter: 1.5mm
- 8 coils
Version 2.0 maintains the previous spring characteristics but increases the spring rate to compensate for areas that Version 1.0 couldn’t fully cover due to lever ratio and vehicle weight issues. We recommend trying Version 1.0 both front and rear first, and considering Version 2.0 if you find it insufficient.
These springs can be used on both the front and rear, and because they have the same overall length as Version 1.0, they can be used in various combinations as a set for both ends.
Designed for competitive use, these springs aim to provide a feeling of not losing the load placed on them rather than allowing significant rolling. Since this spring has significantly different characteristics compared to general ones, it is recommended to use it as a front and rear set. Additionally, using it without applying preload initially will yield better results. If the 8-coil (Ver.1.0) springs are overwhelmed by the vehicle’s weight or if you desire a more direct feel, try using the 6-coil (Ver.2.0) springs.


BRL-SG02 EdgeFlex Ver.2.0 (Hard)
- Spring total length: 27mm
- Wire diameter: 1.5mm
- 6 coils
Approximate MSRP: ¥1,650JPY for Ver 1.0
Approximate MSRP: ¥1,650JPY for Ver 2.0
Source: Barell






