How do I know if the light will fit my bicycle? Donna Post October 28, 2016 03:53 Updated Follow Boulevard & Avenue have multi-fit stretch mounts Alley & Street Front (F) fits 22-32mm Avenue Rear (R) fits 10-32mm Related articles How do I know the difference between a front & back light? How long will a single charge last? What does the X mean on the light? How do I know if it’s a set or not? Have the products been quality tested? Comments 0 comments Article is closed for comments.