Description
The first product from SimWorks by TANGESEIKI
TANGESEIKI manufactures everything from bearings in-house, creating products with extremely high precision and durability. Among the top-of-the-line Technoglide series, Sim Heads is an original SimWorks headset based on the "Classic" model, which boasts the highest durability and precision.
The stainless steel bearings used in Sim Heads have a cutting precision of ±0.004mm and a mirror-polished ball contact surface, which, combined with the angular contact structure, achieves high rotational performance and durability.
The crown race and top cap are also made from ultra-super duralumin A7075-T6, which is lightweight yet extremely strong and hard, further improving durability and maintaining a beautiful, unified color.
Before the rider even thinks, "I want to turn," the bike is already moving in that direction. Like Zen, which values the "moment when mind and body melt into one," Sim Heads eliminates the boundary between thought and control, seamlessly transmitting impulses from the brain to the body and from the body to the bike, unconsciously tracing the path of the bike. You'll experience the precision with which this alignment between intention and action is achieved.
[FEATURE]
- Based on Technoglide Classic, which combines the highest precision and durability
- The entire product, including the crown race and top cap, is made from ultra-super duralumin A7075-T6 material.
- Stainless steel angular contact structure bearing that distributes loads from above, below, left and right
[SPEC]
| Color: | Silver, Black |
| material : | A7075-T6 Super Light Alloy |
| Bearings: | Shield Bearing |
| size : | 1-1/8" (SHIS EC34/28.6 | EC34/30) |
| Column size: | 1-1/8" (Φ28.6mm) |
| Stack Height: | 28.5mm |
| Weight: | average 97g |
| Made in Japan |
*As stated in the included manual, "reaming" and "facing" may be required to adjust the frame's precision when installing. Using this product on a head tube designed for a threaded headset or a frame with thin walls may result in cracks or damage.
- We ship within 1-2 business days after receiving your order (payment). (Basically, orders placed before 12:00 p.m. are shipped the same day.)
- Messenger delivery is available within Nagoya City only.
- We ship every day from Monday to Sunday, except on temporary holidays.
- Available delivery areas: All over Japan and the world.
- Please note that delivery may be delayed due to credit card processing status. If you would like to specify the delivery date and time, please fill in your request in the additional information in the shopping cart.
- The product will be shipped from Circles.
- Please contact the shipping company in case of damage or loss during shipping.
Regarding the delivery of complete bikes
- Please note that a separate shipping fee of 9,900 yen (tax included) will be charged for shipping complete bikes. (However, an additional fee will be charged for delivery to Okinawa and remote islands.)
- After receiving your order, we will do a final check and ship complete bikes, but it may take 1-2 weeks. Please understand.
- We will send the bike with some parts removed for packing. We strongly recommend that you have your bicycle assembled at your nearest bicycle store.
- We will inform you of the delivery date and other details by e-mail.
- We apologize for any sales discrepancies at the store.
Regarding the delivery of frame sets
- Nationwide flat-rate shipping: 5,500 yen (tax included) (However, an additional fee will be charged for delivery to Okinawa and remote islands.)
- We will inform you of the delivery date and other details by e-mail.
- We will provide the pre-treatment of facing and tapping for the frame sets purchased at our store as a service. We will inform you separately after purchase.
- We can also install a headset and BB for a fee, so please feel free to contact us.





















