The crankset is made by CNC-GEAR HOBBING MACHINE. As you can see from the video on our fan page (Facebook: HIRO SEIKO), the gears are carefully cut out one by one. Whether it is the roundness or the shape of the gear, the precision is very high. If it is used together with our own Pinion Gear which is made with the same production method and precision, it will b

We keep releasing the series of M06 Pinion Gear because the pinion gears of DP48 and DP64 have received rave reviews from all the users. The new-released pinion gears have not only the features of MoS2 impregnated but also the distiction of light-weight. There are 19 specifications of the pinion gears for the M06 series, from 13T to 30T. You can see more details in the lin

It is said that the LowPro Head Screws are so popular right now! Our LowPro Head Screws: Using Ti6AL-4V (Grade 5) and made by CNC machined. The appearance is sophisticated and the precision is quite high. Our screws are not only low-profile but also lightweight!   You can see more details in the link down below: http://www.hiro-seiko.com/products_d2.ph