Powerflex Black Series Front Radius Arm to Chassis Bushes - Caster Adjustable - BMW 4 Series F32 F33 F36 - PFF5-1901GBLK
Maximise front-end grip, sharpen steering response, and dial in precise alignment on your BMW 4 Series with the Powerflex Black Series Front Radius Arm to Chassis Bushes, caster adjustable. Engineered for track and motorsport use, these polyurethane bushes are over 200% stiffer than the original rubber bush to withstand the increased loading at the front radius arm to chassis mounting point. PFF5-1901GBLK delivers on-car adjustable caster of +/- 0.75, so you can fine-tune steering feel and front geometry for serious performance.
Additional caster increases dynamic negative camber on turn, improving tyre contact with the road under heavy cornering and giving your F32, F33, or F36 razor-sharp turn-in and stability. If you track your car or want motorsport-grade control of chassis geometry, Powerflex Black Series is the benchmark upgrade.
Key features and benefits
- Part number: PFF5-1901GBLK
- Application: BMW 4 Series F32 Coupe, F33 Convertible, F36 Gran Coupé
- Location: Front radius arm to chassis bush - caster adjustable
- Over 200% stiffer than OEM rubber for maximum control and precision
- On-car adjustable caster: +/- 0.75 for tailored steering feel and alignment
- Enhanced tyre contact during cornering for improved grip and stability
- Powerflex Black Series 95 Shore A compound - designed for track and motorsport use
- Pack includes: 2 bushes
- Replaces OEM bush part number: 31126855743
- Diagram reference: 1
Why choose Powerflex Black Series for your BMW 4 Series
Powerflex Black Series bushes are manufactured from a 95 Shore A motorsport compound to provide maximum control of chassis geometry. They are designed for the track, ready to race, and engineered to be the best. Expect reduced bush deflection, improved steering accuracy, and consistent performance lap after lap.
Real-world results
We run Powerflex Black Series bushes on our own builds and our customers consistently report sharper steering, better feedback, and more predictable handling on circuit. If you want a direct, connected front end from your F32, F33, or F36, this is the upgrade.
Compatibility and search terms
Ideal for searches including: Powerflex Black Series front radius arm bushes, BMW F32 F33 F36 caster adjustable bushes, BMW 4 Series front lower control arm bush, radius arm to chassis bush, polyurethane suspension bushes, poly bushes BMW 4 Series, caster correction bush, front control arm bushing upgrade, track suspension bushes, motorsport suspension BMW 4 Series.
Non-adjustable option
Prefer a fixed solution? Use part number PFF5-1901BLK for the non-adjustable Black Series version.
Professional fitting
For fitting, we recommend booking with Nforcd in Warwickshire. Email Sales@nforcd.com for a quotation and availability.
Notes
- Designed for track and motorsport use
- Black Series compound: 95 Shore A