30.8 30.4 31.6mm turn 27.2mm seat tube mountain bike road bicycle frame seat tube, seat tube sleeve bicycle seat adjustable set

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Use Road Bicycles

Use Mountain Bikes

Use BMX

Use Cruisers

Foldable No

Brand Name MEIJUN

Model Number AK-01

Material Aluminum/Alloy

Weight 50G

Size Below 38cm

is_customized Yes

Products Outside: Seat adjustable sets Material: Aluminum 6061-T6 Remedy: anodized laser engraved LOGO Size: height 50mm outer diameter 30.4 30.8 31.6 points are three inner diameter of 27.2 Color: Black Red Blue Gold Silver Weight: about 22 grams Features: large diameter tube frame requires the use of small-caliber 27.2 tube when in use, the specific use, as shown below. Special note: Available only 27.2 tube, the tube of the frame size is suitable only 30.4 30.8 31.6 three sizes, be sure to confirm before buying their own frame if applicable Please purchase as needed.