Uploaded December 2021 | Updated September 2026, 2 weeks ago

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Our Double Bobs and Triple Bobs simplify the installation of a downtube battery. Every bike frame is different, and the stock mount doesn't always put the battery where you want it. Bob's give freedom to mount your downtube battery almost anywhere, without being limited by the strength and location of your waterbottle eyelets.

More information at our mount hardware info page:
ebikes.ca/product-info/grin-products/battery-anchors.html

And in they can be purchased either directly from Grin's online shop:
ebikes.ca/shop/electric-bicycle-parts/battery-accessories.html
Or from Amazon if you are in the USA:
amazon.com/Grin-Technologies-Mounting-Downtube-Batteries/dp/B09BH3ZJJK
amazon.com/Grin-Technologies-Mounting-Downtube-Batteries/dp/B09BHFH9HB