Elf HTX 740 Gearbox OiL
Elf HTX 740 Gearbox Oil
Elf HTX 740 is recommended by Montesa for use in the 315 and 4rt gearboxes and we have found it to work well in all modern trials bikes. There really is no other oil like this, it is so light and gives a smooth progressive clutch. It may be expensive but its the best.