Bests & Worsts Reviews from Amazon

This is primarily for road and cross bikes. Hard to impossible to mount sensor on mountain bike with front suspension to be w/i 5cm of magnet. My mountain bike is unexceptional, a Trek FSR with Fox shocks. I could not configure mount to be within 5 cm of magnet. not even close. I spent an hour building shims from mounts for old computers, bells, and lights. They would fall off before I could get out of the neighborhood, let alone try on dirt. CatEye should include shims made for mounting, or provide sensors with greater range. In general too many bike accessories are made for road bikes, but sellers chose not to warm of problems with mountain bikes. Until one has the sensor in hand, it is impossible to predict or measure if ill be within 5 cm. I checked CatEye website, read reviews and questions, searchers each for "5cm" and "mountain bike". None warned of potential problem. I hate returning a product b/c I bought wrong one, but in this case, it's either mislabeled or inadequate.