Apex SM-10RS vs Enkei RPF1 weight
Across the 9 sizes both are made in, the Enkei RPF1 is lighter on average by 0.5 lb per wheel (2.2 lb for a set of four). It is lighter in 7 of 9 sizes.
| Size | Apex SM-10RS | Enkei RPF1 | Difference |
|---|---|---|---|
| 17×8 | 15.8 lb (7.17 kg)ET40 | 16.0 lb (7.28 kg)ET45 | 0.2 lb SM-10RS lighter |
| 17×8.5 | 16.0 lb (7.26 kg)ET23 | 16.3 lb (7.39 kg)ET40 | 0.3 lb SM-10RS lighter |
| 17×9 | 16.6 lb (7.53 kg)ET35 | 15.7 lb (7.10 kg)ET45 | 1.0 lb RPF1 lighter |
| 17×9.5 | 17.6 lb (7.98 kg)ET51 | 16.3 lb (7.37 kg)ET38 | 1.3 lb RPF1 lighter |
| 17×10 | 17.9 lb (8.12 kg)ET45 | 16.9 lb (7.67 kg)ET38 | 1.0 lb RPF1 lighter |
| 18×9 | 18.0 lb (8.16 kg)ET30 | 17.1 lb (7.76 kg)ET35 | 0.9 lb RPF1 lighter |
| 18×9.5 | 18.3 lb (8.30 kg)ET22 | 17.4 lb (7.89 kg)ET45 | 0.9 lb RPF1 lighter |
| 18×10 | 18.6 lb (8.44 kg)ET25 | 18.5 lb (8.37 kg)ET38 | 0.1 lb RPF1 lighter |
| 18×10.5 | 19.2 lb (8.71 kg)ET22 | 19.1 lb (8.64 kg)ET15 | 0.1 lb RPF1 lighter |
Each cell is the lightest offset made in that size. Weights are manufacturer figures unless marked as measured.
Apex SM-10RS
Forged, 21 sizes listed here.
Price ↗ All Apex SM-10RS sizesEnkei RPF1
Flow-formed, 18 sizes listed here.
Price ↗ All Enkei RPF1 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.