5-Hole Vertically Adjustable Clamp-On Idler Mount

Clamp on Idler Mounts are great for letting you mount idlers where you really want them, and for tensioning timing chains on tandems. If you have a bike/trike where the chainline has just never been right, or you are changing to a hub gear drivetrain, or need to simply and reliably tension a tandem timing chain, or you just want to try something different, these are the thing for you.We make a wide range of clamp sizes so we can be sure they will fit perfectly and clamp super strongly.  Each of these clamps comes with a vertical slider block that can be adjusted to achieve the perfect fit.  The slider block has five 8mm threaded holes for mounting idlers (or racks, or brackets, or whatever else you can dream up). If you've ever wished your idler was a little bit higher, or a little bit lower, or over here instead of over there, you will appreciate the drivetrain options these mounts bring. For timing chains on tandems, these are a super easy, super sturdy way to get the chain tensioned