Retroshift, the idea of Portland's Adam Kremen with the help of Mark DiNucci, is a new and old item that has been attracting a lot of attention. In a word, it is an analog version of the STI brake lever with the W lever or bar control moved above the brake lever.

Local riders in Portland are all saying that it has the advantage of being able to shift 4-5 gears at a time, and the structure is simple and lightweight, and it is also hard to break.

Givenalle changed its name to Givenalle and began to focus on the development of components that match the diversified needs of dirt riding, and has now become an indispensable manufacturer.


Since Shimano released MTB components with 6 speeds 30 years ago, the number of speeds has steadily increased, finally reaching 11.

While there was almost complete compatibility between road and MTB components up to 8 speeds, it became slightly dubious at 9 speeds and completely disconnected at 10 speeds when the name Dyna-sys was introduced and the components and shift wire pulls completely changed, making it impossible to run a 10-speed MTB shadow rear derailleur with a road STI lever.

This is a big problem for some enthusiasts, as it means that the combination of a shadow rear derailleur with a stabilizer and a wide gear ratio cassette of up to 36T to control chain wobble cannot be used on a drop handlebar.

In addition, wide narrow chainrings, which have rapidly become popular, are only effective in preventing chain fall when used with a rear derailleur that has a stabilizer function, and cannot demonstrate 100% of their power when used with a normal rear derailleur.

Therefore, there was a wall to realize the use of a 10-speed shadow rear derailleur and wide gear ratio cassette in MTB and fat bike drop handlebars, cyclocross, monstercross, and gravel grinders.

GX G is for Gravel, short pull compatible brake levers and SHIMANO Dyna-sys or SRAM MTB compatible right shifter set.

  • Brakes: Short reach (caliper brake / cantilever brake compatible)
  • Derailleur: SHIMANO Dynasis MTB, SRAM MTB
  1. 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.)
  2. Messenger delivery is available within Nagoya City only.
  3. We ship every day from Monday to Sunday, except on temporary holidays.
  4. Available delivery areas: All over Japan and the world.
  5. 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.
  6. The product will be shipped from Circles.
  7. 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.

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