Good product, mirror could do with being more concave for a wider angle but does the job, easy to fit (just cut the rubber from your grip and insert, no tools needed just wingnut type screw to tighten. Easy to adjust whilst in motion too
The size and fitting of this mirror met my expectations. However, i did not realise this was a magnifying mirror (concave). the one it replaces (stolen) had a convex mirror. the problem with a concave mirror is that it has to be positioned very accurately or you only have to jolt the bike on a bump and the mirror has to be repositioned. The convex mirror, while creating a smaller image making traffic seem further away than it really is, nevertheless includes a large viewing area and as such constant accurate re-positioning is not an issue.