how to: single speed chain tensioner using a rear derailleur
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- เผยแพร่เมื่อ 9 ก.ย. 2024
- here i show you how i setup a single speed tensioner using a rear mech with some other tips
update: i now use a spoke instead of the wire, you basically just slide it through with the nipple at the barrel adjuster. there is a picture in my community page/ig if you wanna see!
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how to remove pivot spring more indepth (reduce chain slap vid):
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This just helped me get closer to my single speed conversion
I’m glad! Cheers !
Good show! I live in flat Florida and don't need shifts. I don't do sport biking but do value the bike for exercise. My derailler is rivetted and not easily disassembled; so I had to break the spring to remove it. Pity! It still dangles in its cage but does not interfere. I removed my shift cable clutter and installed swallow handlebars and a stem extension. Now I can ride upright rather than as a mountain-biker. Also, I installed a springy-seat. My mountain bike came with a front suspension. I am all set for comfort - like a Dutch boy biking in Amsterdam, but on a cheap mountain bike.
Hell ya sounds great!! Sometimes all you need is comfort!! Makes it fun to cruise around for sure !
If you want a recommendation to add to your comfort build my friend then I whole heartedly recommend Suntour NCX SP-12. I've owned one for 2 months now and it completely and dramatically transformed the bike. My hardtail feels like a full suspension bike when sitting down it's amazing for the price. Watch some youtube videos on it first it's an amazing seatpost.
Ooo cheers looks good!
gary this video will make you famous internationally !
Hahahha not sure about that but thank you! 😊
Thank you Gary for this tip,ill be using it on my latest project a 1997 Rocky Mountain Hammer Race beater, cheers from MTB heaven here in BC Canada
Hell ya that’s awesome ! Greetings from melbs aus !
amazing, i have to run my mtb in single speed until i get a new shifter, this saved me trouble. thx a lot
No worries mate glad it’s helpful!
my fav channel
Yayyy 😊🙏🙏
Nice one just about to give this a go thanks for sharing 👍
No worries, hope it works out!
@@garysprojects yes fingers crossed 🤞 thanks again
Very helpful, thanks for sharing!
No sweat !
Thanks for the tip, digging the slow mo shots! Got any new projects you're working on?
Cheers man!
Ya i have the specialized rockhopper that I am gunna change up a bit, and another purple shogun to do and also someone donated suss forks so might build up the norco frame as well ! Lots of thinking to do haha 😅😅
Easier method: longer screws for the limit adjusting srcews and you can put the derailleur the exact same position without using any cable.
That’s a good option too cheers
I had one of those black tensioners a cuppla years ago. It looked the tabasco, and it was cheaper than day old dims sims, but it was a bugger to install. I couldn't find installation pics, or instructions, anywhere. I ended up adapting a B-screw plate from a dead derailleur. I'd love to see how you wangled it.
Ayy I ended up putting it on the hanger!, it’s in the Kona build: th-cam.com/video/-eZjF3-nac4/w-d-xo.html if you’re keen 😊
Brother Thank you S🥰🥰🥰 Much 👌🏻👌🏻
No worries!
No need to use both pulleys. I make these with one pulley, one side plate, and the largest available single pulley. See my video. My version will also work with internal gear hub systems as shown.
I tried it with one pulley on the old tensioner, but for jumps and stuff it kept slipping/loosing tension, but yeah probably good for just cruising around. I now use the magic ratio so I don’t have to run a tensioner at all which I recommend - have a video on that too if you’re keen
Ive done this but it is quite noisy on a full suspension. Any tips? Also, would it be worth buying a proper chain tensioner with 1 jockey wheel, or is this okay
Mmm not sure , I’ve never tried on a dual suspension. If you don’t like the noise I think a single pulley would be quieter but dual pulleys help keep the chain on better
Need help w this. I tried this method but the chain (master link) does not run clearly when going through the rd. All the aligning is good, just the master link having trouble going through the rd. Im using a single speed chain. May I know what chain your using on the vid.
using 3/32 chain (6/7/8 speed chain )
@@garysprojects Thanks for answering. Think an 8 speed chain will be compatible on a single speed cog? cus i plan on getting one online.
Pivot spring thing is cool but I don’t understand why u need to use a cable. Surely just blocking off the limit screws would do the trick no? Am I missing something?
Yep that works too, you just need longer limit screws. You can also use a spoke too (on my community page). I like the cable because you can do easy adjustments when you’re out riding.
Late comment: Why not just leave the RD as it is, but remove the cable? Adjustment which cogs to be used can be set by using the screws to tune the RD before decommissioning it.
Sometimes to do that you need longer limit screws which I didn’t have
hey gary how do you keep the cut down gear cable inside the barrel adjuster im assuming its the nobby bit inside barrel adjuster ? thanks
Yup that’s it , the derailleur holds it in because the spring is under tension and pulling on the gear cable
What singlespeed kit did you use at the back? All the kits I looked at recommend a 3/32” or 1/8” chain or does that not matter? Also, are you using this bike for mountain biking?
Hi I just used one that came with the spacers, I think it was just a generic one off eBay. I use the 3/32 size as my front chain ring was for that size. This bike is apart, as I used some of the parts for the chute, I mainly use it to ride around and sometimes jumps and stuff
G'day, Gary! Does it work as well with conversion to a fixie?
Hi Brian ! I haven’t done it on fixed gear myself but I think it would work!
Hey what frame is that? Love the square tubing
Is a Kona chute! Cheers
Why are Single speed tensioners used instead of just shortening the chain like with Interna gear Hubs?
Probably easier to install than a hub
@@garysprojects still dont get it. Fixie bikes for example are Single speed but dont have a chain tensioner and they work fine. Why are Single speed tensioners often used with Single speed gravel bikes? a shortened chain would not slack on a gravel bike aswell, would it?
@@stonnoa its because of how the drop outs are. Most fixed gears have horizontal drop outs which allows you to pull the wheel back and set the right tension. This frame has vertical dropouts which doesn’t allow that, however it’s possible to have a “magic” gear ratio with the right combination of cogs that matches up to chain length - thus not running a tensioner (I have a magic ratio video on my channel too) hope that makes sense cheers!
@@garysprojects oh ok. Thank you, that seems logical. Haven't thought about that. That makes it Clear. :D
Sir, how did you put that cable? I can't get that how. Hehe
It’s a gear cable cut down and you put it through where normally the gear cable would go through, (the barrel adjuster), hope that helps !!
@@garysprojects no, i mean sir, how to lock on that adjuster?
@@KuyaAmiel the gear cable has a little metal cylinder on the end so it doesn’t slide through (normal on all gear cables)
@@garysprojects big thank you sir. 🙏
Tutorial please
?
Why didn't the tensioner you bought work?
Chain kept popping off the pulleys when I was doing jumps and stuff
@@garysprojects Yeah. Probably because it doesn't have that thing that goes around the gear/sprocket/ or cog. Can you remove one from the Shimano and attach it to the new one or return the one that you bought and get one that has that piece? It's like a loop.
@luigiprovencher8888 ahhh true that might be possible, I run a magic ratio now so I don’t need a chain tensioner , made a vid of it if interested
@@garysprojects Magic Ratio?
@@luigiprovencher ya search on my channel, it’s in the “how to “ section