Konig Ampliform vs Rotiform RPS weight
Across the 8 sizes both are made in, the Konig Ampliform is lighter on average by 0.9 lb per wheel (3.4 lb for a set of four). It is lighter in 4 of 8 sizes.
| Size | Konig Ampliform | Rotiform RPS | Difference |
|---|---|---|---|
| 18×8.5 | 19.0 lb (8.60 kg)ET45 | 21.6 lb (9.78 kg)ET45 | 2.6 lb Ampliform lighter |
| 18×9.5 | 20.3 lb (9.20 kg)ET35 | 22.7 lb (10.29 kg)ET38 | 2.4 lb Ampliform lighter |
| 19×8.5 | 21.6 lb (9.80 kg)ET45 | 22.4 lb (10.14 kg)ET35 | 0.7 lb Ampliform lighter |
| 19×9.5 | 23.1 lb (10.50 kg)ET35 | 22.9 lb (10.40 kg)ET38 | 0.2 lb RPS lighter |
| 19×10.5 | 25.5 lb (11.55 kg)ET23 | 24.1 lb (10.91 kg)ET40 | 1.4 lb RPS lighter |
| 20×9.5 | 25.0 lb (11.33 kg)ET35 | 24.7 lb (11.20 kg)ET35 | 0.3 lb RPS lighter |
| 20×10 | 26.8 lb (12.13 kg)ET48 | 26.2 lb (11.88 kg)ET30 | 0.6 lb RPS lighter |
| 20×11 | 23.6 lb (10.70 kg)ET50 | 27.1 lb (12.29 kg)ET45 | 3.5 lb Ampliform lighter |
Each cell is the lightest offset made in that size. Weights are manufacturer figures unless marked as measured.
Konig Ampliform
Flow-formed, 14 sizes listed here.
Price ↗ All Konig Ampliform sizesRotiform RPS
10 sizes listed here.
Price ↗ All Rotiform RPS 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.