The mechanical brakes are a joke. I ran them for about 3 months. The extra weight is not worth it. Plus the brakes fade and always need adjusting. The electric braking is better. Just make sure you don't use too heavy of batteries. I recommend around 500g.
8ight-e 2.0 Tekin RX8, Tekin 1350kv motor, Losi 5s 4000mah, 45/15gear
8ightT-e 2.0 Tekin RX8, Tekin 1350kv motor, Losi 5s 4000mah, 50/14gear CarSports.com - RC Car setup website