I have never seen anyone put a washer on the outside of a skate wheel before.Thats what the lock nut is for. Yours truly.

Nice piece, keep up the great work man!

That’s probably one of the cleanest one of those I’ve seen made! Thanks for the video will have to grab one for the next build has a really nice look to it

Id swap the skateboard wheel out for a sprocket from a kids bike :)

I'm really enjoying these motorized bicycle videos, especially since you really know your stuff with 2-strokes. That is a nice tensioner! There's another model that is very similar that mounts between the cover and crankcase itself, but those require a bearing between the clutch cam and bucking bar, often cause the chain to rub against the tensioner mount plate, and also come with a pretty weak spring (though that is easily replaced). There are other tensioner/idler models that include a more robust four-bolt "stock" style idler, another that is a chainstay-mounted spring tensioner, another that is a channeled arc that mounts to both the chainstay and the seatstay with an adjustable idler wheel, and probably others I have not seen. My preferred method is no tensioner at all - it's tricky but can be accomplished with a (near-)perfectly centered wheel sprocket and shims for the rear mount of the engine to gain proper tension. Horizontal dropouts for the rear wheel and a halflink for the pedal chain (if needed) help a LOT as well. Takes patience and planning but is very much worth it!

Awe man! They stole my idea! Ha ha ha. I'm in the process of making one exactly like that. Too funny. The urethane wheel should quiet things down quite a bit. I would suggest putting the wheel on a lathe and turning a slight channel for the chain to ride in though. Just to make sure things stay aligned and make it more stable. Also you may want a stiffer spring. Looks like that one is a bit light for the job. Good luck my friend. Looks awesome!

I highly recommend using BOTH tensioners, resulting in a very smooth riding chain.

I got a free 1 w/ my pk- 80 and going to make some counter sink mounting holes since its solid topped.

you deserve more visuals!

Cool you could use a product from my home state of Minnesota! Cool video thanks!

I always wondered if the chain will lag off at high speeds since there is no freeway walls on the wheel.

Yeah Minnesota!

I had a spring loaded tensioner on mine. I found as decelerating the chain would bounce and doing around alot sometimes causing chain derailment or snapping from the sudden tension from bouncing.

If it's a skateboard wheel, wouldn't it just roll off? I mean there would have to be groves in there somewhere.

This accessory clearly shows how there is an issue with the rear sprocket not being installed or the holes are not in the right place or something like that.

Hi enjoy your videos, thanks. Why is the chain so slack to start with ,why not take a link out?

Any plans for future work or videos on the motorized bicycle?

I wish I could afford one of these chain tensioners

i have the same setup but use the wheel from the old one

Can easily make your own with stock hardware a spring and a piece of flat metal.

how much hp u can get from just pedaling the bike? :D

crappy tensioner doesn't work on a 29 inch tire bike, it hit the tire and trying to make it work but really doubt its going to work

Your chain isn't a bit to long don't you think?

Why don't You cut chain in right lenght. You can change tension by moving rear wheel front und back. No tensioner needed.

If you want to not break your neck using that tensioner you WILL need one of these. www.ebay.com/i/182007083217?chn=ps . When you coast or start the slack side of the chain gets tight, and move the tensioner out of the way, while the top gets VERY loose. Then the engine will get two links try to hop onto the top of the engine side sprocket, locking up the wheel. I think they are a horrible idea, but if you want to run one just run an anti-lockup block.

Their is a joke somewhere here. Deluth Underwear and this Deluth chain tensioner

These tensioners are good but overpriced. Will not buy until they sell for around 20$.

These people are fucking insane. $55? For what? Does it come with a new chain and rear sprocket? Is it titanium or aircraft grade aluminum? Oh wait, does this one also have a "patent pending" like they created the idea of a spring chain tensioner? Lol. It's two pieces of metal cut to shape with a $1 spring and $1 wheel. My local metal shop quoted me $18 for effectively the same thing minus the wonky colors, logo and replacing the wheel with an actual sprocket that won't wear out in 300 miles. Mind you that's for a single one. So add in the fact they buy everything in bulk and you can quickly conclude that they're just greedy fucks taking advantage of people that think it's a lot more difficult than it is to make.