Nutt Hydraulic Brake Disc Upgrade Kit - To fit Revvi 12" + 16" kids bikes

 You may also need to slightly adjust the rear wheel spacing with washers for the perfect fit/alignment. 

A rear Hydraulic disc brake kit designed by Moto Twenty5 Concepts with a Nutt hydraulic brake system to both improve brake power and also ease of use for the rider. 

The kit includes:

• Nut hydraulic brake system with brake lever. 
• 140mm disc
• brake disc hub mount
• brake mount
• nuts/bolts/spacers/ties