Set of 4 Titanium Retainers made of best grade titanium (grade 5)
These are a direct replacement for the original aluminium retainers on the:
Suzuki RMZ 450
Suzuki RMX 450
Suzuki LTR 450
Suzuki DRZ 400
Suzuki LTZ 400
 
The original aluminium retainers are too weak for the stronger valve springs that are often installed in modified engines.
The possible results are ovaling of the shim recess, making it easier to 'spit a shim' and also letting the kepper/collet sink into the retainer. Both can be very costly.
ABUSO Titanium Retainers fix these issues.
 
These retainers have a smaller profile/height (0,85mm shorter) to allow for more valve lift without contact with the oil seal and without requiring valve guide modifications.
 
Using lightweight titanium retainers allows for more aggressive camshaft profiles (lift and duration) without losing control of the valve and increased rpm limits - a must for any performance / race engine.