- Redline formed 6061-T6 frame tubing, w/ integrated headtube
- Redline alloy sealed bearing cassette hub w/ hollow chromo axle
- Redline Microline cranks, 3pc 6061 forged aluminum and sealed Euro BB
- 20” Sun M13II alloy rims w/ Tioga 20 x 11/8 Powerblock tires
The Proline Mini features a redesigned frame and fully sealed front and rear hubs. It was a great bike before, even better now.