Rotiform BPU vs TSW Slipstream weight
Across the 3 sizes both are made in, the TSW Slipstream is lighter on average by 0.1 lb per wheel (0.6 lb for a set of four). It is lighter in 2 of 3 sizes.
| Size | Rotiform BPU | TSW Slipstream | Difference |
|---|---|---|---|
| 19×8.5 | 22.9 lb (10.40 kg)ET35 | 24.7 lb (11.20 kg)ET42 | 1.8 lb BPU lighter |
| 19×9.5 | 23.8 lb (10.80 kg)ET40 | 22.1 lb (10.00 kg)ET25 | 1.8 lb Slipstream lighter |
| 19×10.5 | 25.1 lb (11.40 kg)ET40 | 24.7 lb (11.20 kg)ET43 | 0.4 lb Slipstream lighter |
Each cell is the lightest offset made in that size. Weights are manufacturer figures unless marked as measured.
Rotiform BPU
5 sizes listed here.
Price ↗ All Rotiform BPU sizesTSW Slipstream
5 sizes listed here.
Price ↗ All TSW Slipstream sizesIs the weight difference worth it?
A pound saved at the wheel counts for more than a pound saved in the car, because it also has to be spun up and slowed down. Here's how much it really matters.