I have recently purchased the RTL515 (very happy so far) but the mounts and elastic bands don't fit on my Argon 18 E117, pictured here: https://www.slanecycles.com/bmz_cache/1/1c45a36983d70078c236fd86c08a9785.image.750x500.jpg
I have a work around using a zip wire (not tested on the road yet) but is there a better solution?