1. The upgrade parts are made of aluminum material, parts processed by CNC 3D machine tool are very precise , by adopting whole shaped technology, the products have the characteristic of high intensity and durability.

2. The aluminum wheels' hex size: 17mm, inner hole:12mm.

3. The aluminum wheels are easy to assemble without sticking glue.

4. The 1pcs aluminum wheel weight is 153.4 grams.