Ebikeschool.com tested the Ibera triangle frame bag, writing that it proved to be a great choice for mounting electric bicycle batteries.
Some quotes from the review:
"I have found to be great quality and have stood up to about two years of use so far on my ebikes."
"… incredibly roomy …"
"I give these frame bags two thumbs up."
Read the full review.
Check out Ibera's TRIANGLE FRAME BAG IB-FB1.
