Titan crankshafts are not unlike the Hoeckle crankshaft of the seventies.
However they are different in many important aspects.
1. Titan cranks are made from EN36 ‘forgings’ and heat treated to give a hardened surface whilst maintaining a high core strength.
2. Forging gives much better grain orientation thus improving tensile and Fatigue strength.
3. Forging reduces the amount of machining which can help reduce distortion in subsequent heat treatments.
The crankshaft comes complete with bearings to original Yamaha spec.
(or higher) depending on availability*
The crankshafts flywheels are all 'factory matched' sets for each crank to maintain a higher degree of trueness than original Yamaha parts. Parts should never be mixed without reference to our technical information. This is especially so for the center M/F flywheels which need a very precise fit.
The special 'Titan' center labyrinth seal has two 'O' ring seals added on the O.D. to seal across the crankcases thus allowing a reduced metal to metal fit within the crankcase at this point, which in turn, allows a better 'pinch' of the center main bearings. For this reason the lab seal is actually .025mm smaller on O.D. than the center bearings.
The taper on the ignition side flywheel is as per standard Yamaha 'G' model with the 12.0 mm x 1.25mm threaded end for ignition rotor retaining nut. However for those using a Krober ignition and 'windmill' rotor the shorter TZ A/B/C type ignition flywheel with 7.0 mm female thread is available to special order.
All crankshafts are despatched in a secure wooden box for extra safety which adds a bit to freight weight/cost but is worth the extra.
Please see our separate price lists for complete crankshafts and parts. Prices do not include UK VAT @20%
Racing is dangerous and stresses man and machine to the limit and beyond. Therefore warranty for failure of any individual part of this product is strictly limited to replacement of that part only. Any subsequent damage or injury however caused is not covered.