Grin Bottle Bob - Secure Mount for Downtube and 'Water Bottle' Batteries 

This product allows you to install a frame-mounted battery pack onto an e-bike if it doesn't have a suitable pair of water bottle bolt holes in its downtube / seattube.

The pair of Bottle Bob aluminium battery brackets mount firmly to any frame downtube up to 57mm diameter, with the provided hose clamps. Heatshrink tubing is included to protect your bike's paint from the hose clamps.

The two Bottle Bob pieces provide one M5 threaded hole each, which the battery bracket can then be bolted to, creating a secure mount. 

About Grin Products

Grin are a Canadian company which designs and manufactures E-Bike products from Motors to mounting brackets. They've been designing and making ebike battery mounting brackets from the moment they got their first CNC milling machine.