Type: ST-2 MAX LIFT(mm):IN 10.1mm / EX 9.2mm 1mm DURATION(degree):IN 258 degrees / EX 244 degrees Standard tappet clearance (mm):IN 0.13mm / EX 0.23
[Included parts] ・Cam sprocket ・Seat Shim
[Separately recommended parts] ・Valve Cotter Set (Part No. 222-509-3000)
*The cam specs shown are calculated from the design values of the camshaft. Due to the manufacturing process, there is a slight variation in each lot. *ST-2 can be installed by bolt-on, but if you need more accurate timing, it is recommended to re-set the valve timing for each vehicle.
Compared to the ST-1 camshaft (online shop link), the ST-1 camshaft provides more power at higher rpm. The cam sprocket has been modified with a long hole to allow for valve timing adjustment (stock is fixed).This allows for use with various engine specifications and tuning levels.The valve timing has already been adjusted for the STD engine at the time of shipment. When using ST-2 camshafts with stock valve springs, the included seat shims (which fit under the valve spring seats) are used to optimize the valve spring tension.
Points of Attention
* If there may be an instruction manual included, it will be written in Japanese.
This camshaft work great. Same torque as a stock 1340 under 5000 and alot more top end horsepower. My engine is a Busa 1441 for street riding,View Detail
This camshaft worked extremely good on my 1441cc engine. Torque under 5000 is same as a stock engine, but plenty of top end horsepower at 11000rpm. This is a great product! View Detail
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