I have recently completed a conversion to Terracycle idlers on our Rans Screamer and am very pleased with the results. It was an easy conversion, with only one idler on the timing chain and the drive chain runs much truer. (Stoker was forever breaking the little white pegs on the stock set-up!) Managing such long drive trains is not as simple as it seems, but the new set up, once properly adjusted, is flawless. I had a bit of trouble getting the timing chain tight enough so that we weren't dropping the chain, but not so tight as to hinder smooth rotation of the complete system. Well worth the $$$

I have also switched the idler on my Catrike to a Terracycle idler and there is a huge performance improvement. I was able to eliminate all of the black tubing on the return side, except for about 4" where it travels under the cross-arm, which was sucking some energy, and the whole system seems to be smoother. I'm happy to endorse the product. Mike