JT front sprocket JTF712.13, 13 teeth, pitch 428

JT front sprocket JTF712.13, 13 teeth, 428 pitch

JT front drive sprocket. The vehicle compatibility below was taken from the official JT Sprockets Application Guide 2024.

Technical specifications

• JT part number / Fitment: JTF712
• Installation position: Front / transmission output
• Chain pitch: 428
• Teeth available in shop: 13

Suitable for – official JT vehicle compatibility

Important note on tooth selection: The JT fitment number describes the compatible mounting. The Application Guide also specifies the number of teeth with which each vehicle is listed. Another offered tooth count from the same fitment family will change the gear ratio and may differ from the stock gearing.

13 teeth according to JT Application Guide

• Aprilia 125 RS4 – model year 11-16 – chain 428, 136 links
• Aprilia 125 RS – model year 21-23 – chain 428, 136 links
• Aprilia 125 RS4 Replica – model year 13-17 – chain 428, 136 links
• Aprilia 125 RS Replica 4T ABS E4 – model year 17-20, 21-23 – chain 428, 136 links
• Aprilia 125 RX E4 – model year 18-23 – chain 428, 142 links
• Aprilia 125 SX E4 – model year 18-23 – chain 428, 138 links
• Aprilia 125 Tuono – model year 17-20, 21-23 – chain 428, 136 links

Installation and gear ratio note

• Compare model, year, chain pitch and desired number of teeth before ordering.
• A different number of teeth changes the gear ratio and may require a different chain length or adjustment of the chain tension.
• Perform installation and tightening torques according to the vehicle manufacturer's specifications.