Front sprocket JTF1129.12 (pitch 420) - Derbi Dekker 50 R / GPR 50 Nude / Racing / Senda 50 R / 50 SM / Variant 25 / 50 - JM

Steel front pinion -JTF1120.12 pitch 420 and 12 teeth for Derbi Dekker 50 R (2003) / Derbi GPR 50 Nude (2004-2006) / Derbi GPR 50 Racing (2005) / Derbi GPR 50 Replica Racing (2003-2004) / Derbi Senda 50 R DRD (2003-2004) / Derbi Senda 50 R DRD Racing (2004-2005) / Derbi Senda 50 R Racer (2003-2004) / Derbi Senda 50 R X-Race (2005) / Derbi Senda 50 R X-Treme (2003-2005) / Derbi Senda 50 SM DRD (2003-2004) / Derbi Senda 50 SM DRD Racing (2004-2005) / Derbi Senda 50 SM X-Race (2005) / Derbi Senda 50 SM X-Treme (2003-2004) / Derbi Variant 25 Revolution (2004-2006) / Derbi Variant 50 Revolution (2004-2006) / Gas Gas MC 65 (2005-2009) / Gilera RCR 50 Enduro (2004) / Gilera SMT 50 Supermotard (2003-2004).

Specifications:
- JT Sprockets production is today the largest and most modern manufacturing unit for sprockets and gears worldwide;
- equipped, among others, with the latest generation of CNC manufacturing machines;
- JT Sprockets produces the entire range of sprockets and gears for both aftermarket and original equipment;
- each sprocket and pinion goes through 25 production stages, subjected to more than ten individual quality checks to successfully complete production;
- JT Sprockets produces correctly: through turning, milling, and drilling;
- this is the only way to achieve the highest quality, with the smallest tolerances and the best tooth profile;
- after subsequent heat treatment, each item is manually checked;
- JT Sprockets sets new quality standards in the motorcycle industry;

Technical data:
- Chain pitch: 420;
- Mounting: large groove;
- Minimum inner diameter: 14 mm;
- Maximum inner diameter: 17 mm;
- Inner teeth (number of teeth): 6;
- Inner teeth (distance): 4 mm;
- Number of mounting holes: 2;
- Distance between mounting holes: 23.5 / 28 mm;
- Execution: standard;
- Manufacturer: JT;
- Number of teeth: 12.

The complete application list can be found below.