Upgrade your BMW 1 Series F20 F21 front suspension with Powerflex PFF5-1901G Caster Adjustable Polyurethane Bushes. This Front Radius Arm to Chassis Bush kit is the go-to performance suspension upgrade for sharper steering, added stability and improved tyre contact under load. We have used these ourselves at Nforcd and our customers love the immediate improvement in handling and steering feel.
Key features
- Part number: PFF5-1901G
- Vehicle fitment: BMW 1 Series F20, F21
- Location: Front Radius Arm to Chassis Bushes (often known as front wishbone rear bushes or front control arm bushes)
- Caster adjustable: +/- 0.75 degree on-car adjustment for precise alignment
- Compound: Powerflex Road Series polyurethane, approximately 60 percent stiffer than OEM rubber
- Pack quantity: 2 bushes
- Diagram reference: 1
- Warranty: Lifetime Warranty
Why choose Powerflex PFF5-1901G for your BMW F20 F21
These caster adjustable poly bushes are engineered to control unwanted suspension movement far better than ageing factory rubber. The extra caster improves straight-line stability and steering self-centring, while also generating additional negative camber on turn for more front-end grip and confidence in fast corners. Ideal for fast road and track-day setups, yet civilised for daily driving thanks to the carefully formulated polyurethane that maintains excellent NVH suppression.
Performance benefits
- Sharper steering response and improved steering feel
- Increased cornering grip from added negative camber on turn
- Reduced braking instability and tramlining
- Better tyre contact patch for more even tyre wear
- Greater durability under high loads compared with rubber bushes
Common symptoms these bushes help cure
- Imprecise handling and vague steering
- Uneven or accelerated front tyre wear
- Instability under hard braking
For a non-adjustable version of this bush, choose PFF5-1901.
OE reference numbers
For search and cross-reference: 3112685574331126855741 / 31126855742
Fitting and alignment
Professional installation and alignment are recommended to set caster precisely. We offer in-house fitting at Nforcd, Warwickshire. Request a quote at Sales@nforcd.com.
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Buy with confidence from Nforcd. Powerflex poly bushes deliver prolonged tyre life, improved performance, increased safety and excellent cost-effectiveness, all backed by a Lifetime Warranty.