- Custom developed by BBR for adult backyard racers and aggressive mini riders
- Most models are 30% stiffer than stock and stress relieved for long life
- Custom wound from aircraft quality spring steel
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2018-2020 | Kawasaki | KLX140G | |
| 2017 | Kawasaki | KLX140G KLX140CHF | |