Choice 20-23mm Thin Internal Battery Mount Seatpost Internal Battery Holder Battery Converter Mount for Di2

Seatpost Internal Battery Holder of TPE Material Electric Derailleur Battery Holder Battery Holder Conversion Seat for Di2 Bicycles Compatible with 27.2 and 31.6mm
Features:
1.Compatibility with 27.2mm/31.6mm Seatposts: Designed to fit standard round and irregular seatposts, this product ensures a secure hold and is ideal for various bike models with electric derailleur battery holder.
2.Lightweight Sector Design: Embrace ultralight principles with this sector-designed product, reducing cycling load and enhancing performance through battery converter mount.
3.Original Slot & Battery Groove Match: Features a match to original slots for battery grooves, efficiently securing the battery with internal battery mount.
4.Nine-Blade Anti-Slip Design: The multiple blade design increases friction, ensuring your battery remains secure during rides with seatpost internal battery holder.
5.Simple Operation: Easily install and use this product without hassle, providing convenience in every use with battery holder conversion seat.


Specification:
Origin: Mainland China
Main material: TPE
Product color: black
Product specifications: 1 pair of narrow round seat tube inner diameter 20-23mm available; 1 pair of wide round seat tube inner diameter 21-29mm available
Product size: about
1 pair of narrow: 6.8cm (2.68in) x 2.4cm (0.94in) x 2.4cm (0.94in)
1 pair of wide: 6.8cm (2.68in) x 2.8cm (1.10in) x 2.8cm (1.10in)
Product net weight: about 8g/11g

Note:
Due to different monitor settings and lighting conditions, the actual color of the item may vary slightly from the pictures. Thanks for your understanding!
Please allow a 1-2 cm difference in measurements due to manual measuring.

1 Pair x Fixed Seat