Description
MIDDLEBURN, a British crank brand, offers sophisticated forged aluminum cranks that have been improved many times since 1991, and in recent years have evolved using modern technology such as 3D modeling. They guarantee to be the stiffest cranks on the market, yet lightweight.
RO1 SQ double road spider is made of "A7075", an aluminum alloy that is used in the aerospace industry.The material is manufactured through forging and CNC machining.
The unique lock ring shape is used, RO1 Square Taper Crank is required to install the RO1 Square Taper Crank. It is compatible with both single and double front cranks.
A colorful addition to a rugged crank, the MEDIUM / Medium Alloy Cup Crank Bolts Set is the perfect choice.
[SPEC]
Material: aluminum alloyA7075
Weight: 62 g
BCD: 110 mm
Chainline: approx. 43.5 mm (BB axle length 107 mm), approx. 49 mm(BB axle length 118 mm)
- 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.