BBR Tuning Performance Spring Idler Pully Upgrade

First off(stay tuned, i talk about how to make it work if you have problems), i want to say that i love this spring tensioner. It works beautifully, all problems that i've been having with the default tensioner are gone completely. I never have to adjust my tensioner anymore because if there is a big bump, the spring goes to work instead of the tensioner bending in weird ways.Now, if you are having problems with the spring tensioner catching the chain once you try to start the engine(causing you to skid to a hault) you are putting it on wrong. Do not put it on how they do in the image because the spring is way to weak to handle the forces without making the pully go down too far and catch the bolt connecting the pivotting bar.What you need to do is put the tensioner on the other way. The pully should be towards the engine, with the spring towards the sprocket on the back wheel. This way, once you peddle up to speed and release the clutch, the chain and pully have nothing in the way and can go down as much as it needs, and the engine starts. After i did this, i've never had problems starting the engine and the chain never gets caught anywhere.You might need to cut the chain down to do this though. I would also make sure that the spring has some tension when you put the chain on. This way, there will be no slack in the chain, the slack for bumps is provided by the rest of the spring.

I had two problems with this spring tensioner one of which was that the bolt behind the pulley will stick out too far. My chain got wrapped around it and rounded it off. My solution was to make my own more narrow bolt. Second was when I would pop the clutch to start the motor it would put so much force on the spring that it would pull the tensioner back too far & once threw off my chain. I fabricated a sheet of stainless steel to catch the pulley arm only letting it back enough to let some tension out of the chain. My overall review is that this tensioner is usable but in my case I had to make it work, it wasn't just a bolt on and be done with it kind of deal. Note that my bicycle is a Schwinn Stingray frame so my problems may only be unique to my setup

No instructions but simple enough to get on even with trial and error. Was sketchy about the arm being mounted in a slot rather than a hole due to issues with the one that came stock with my engine, bit got it nice and tight. And the arm still moves with ease. Mounting on the bottom instead of the top causes a slight issue with the chain clipping the bolt head on the roller, but an easy fix with a new bolt. All in all great product so far!

A definite upgrade from the basic stock tensioner pully. Keeps the right amount of tension on the chain and is much less likely to shift out of place.

It’s an okay pulley. For the price, go for it. It’s definitely an upgrade from those stuff, cheap, bendy ones you get with those 80cc moped kits.

it had use over 300 miles but little too weaker with spring during hot weather,, that make loose chain .. It still need stronger spring but not too tighten ..

Let me tell you, this was a really good invention-if it workd right out the box. The assemble was easy, but it should have come with instructions for beginners. The metal is good quality but the problem lies in the spring. It is way to weak for what it has to do. Once you replace it it should keep your chain tight.

The product works well. However, I found that the spring securing band was just a waste and I ended up drilling a small hole in the frame to secure the spring, that works fine. The bracket works but it took some testing to find the right position (forward or backwards, inside or out) so that took a bit of brain-work. But, all in all, it's good and provides the necessary tension on the chain for my needs. I would recommend this product, but do not expect perfection.