Install New 160mm Mountain Bike Fork With Internal Stem Extender
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- čas přidán 30. 01. 2023
- My new 160mm fork arrived too short from the factory. I purchased an internal fork tube extension and discovered it doesn't tighten up enough for rigorous dirt riding. I ended up epoxying it in permanently to be absolutely sure it doesn't loosen up jumping up rocks or curbs!!
- Věda a technologie
thank you for your advice bro ❤
I was planning on getting one mysel
VERY interesting. Maybe a little more torque? All the best.
Stan, the aluminum was just too soft and the knurled teeth just flattened out. Definitely JB weld. 😀
I want an update planning to buy one
Can you add some links to source a purchase of so-called internal fork tube extension. I could not find any. Thanks.
May I know how is it right now? Is it stable even right now?
Hi Mike! how was the result does it work? Thanks
thanks for the video. in a similar situation. how did the jb weld go? did the extension stay in place? did you consider an external extender?
ewen
So far JB weld is holding great after two hard twenty mile rides over rocky terrain. An external extender only works to raise your bars. My case was I only had an inch or so above the head tube so I would have had to weld on extension. Good luck!!!
You need to use the specific carbon fiber paste for aluminum-carbon contact, not jb weld. Any local bike shop should have it.
Then you need to pre tighten the extender so that is almost a friction fit when you insert it into the fork so that when you tighten it the aluminum grips immediately.
Thanks Stefano! My fork tube is aluminum. Also greasing the wedge and threads seems to allow for more torque. JB weld is extra insurance!!😀
I need one of this extension...If using carbon fiber paste to fix this on my carbon fork, will work well Steano?
@@David-kf4pt I don’t have carbon fiber stem. Use the proper adhesive and grease internal wedge parts and nut and tighten to the max. You should be ok!!
Did you lube the threads of the compression plug before installing it the first time? What torque did you use? On carbon forks we use compression plugs and we have to always disassemble and lube the screws before installing and then torque them to manufacturer spec which is usually around 6-8nm. Just wondering if that would of made a difference instead of the jbweld
I did tighten to 10 nm. I think lubing the wedge and bolt is a good idea. The Jb weld is a good secure solution. The extension will never be removed for any reason I can think of. Maybe the knurled teeth will get a better bite in a carbon fiber tube? Thanks!!!
David, this extension would work in a carbon fork of a road bike? If so, there's no problems on tightness or the extension become loose?
That extender is designed for carbon fiber forks .
I wanted to use this extender on my gravel bike with a steel steerer tube. Unfortunately, the connection in this case is too weak despite the use of a very high tightening torque and after each ride the bearings were loose. Perhaps an aluminum or carbon steerer would be better. Epoxy glue might be a solution. Be careful, it can be dangerous.
Use JB Weld. It won’t loosen again!!! Clean any oils from interior of tube with alcohol before gluing! Good luck!!!
hello everything is fine? Did you do some tests with the bike and everything is still going strong?
I took it on a hard 16 mile very rocky ride today. All went well.
This is just to lengthen the tube but not raise the height of your steerer, right?
You could raise the height of your bars by using the extender then adding spacers under your stem clamp.
how is it holding today? does it come loose again with the epoxy ? or not?
Ok Carl. I just returned from a 16 mile rocky, hilly trail and it seems to be holding just fine. I think the key is to lube the bolt and wedge components and tighten it as tight as you can. It may take to people to get it tight. I epoxied it just in case , but maybe it was overkill!! 😀
is it safe until now?
Still solid after miles of rocky trail riding!!! Be safe😀
can you plase share links where to find it or how it is called?. Is still solid? Thanks.
here is a link: www.ebay.com/itm/364041505147?chn=ps&_trkparms=ispr%3D1&amdata=enc%3A1xs4mRX3qQX2DYT3Y8cDBZg68&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&mkscid=101&itemid=364041505147&targetid=1584571731043&device=c&mktype=pla&googleloc=9031150&poi=&campaignid=19894961968&mkgroupid=148855406073&rlsatarget=aud-1480434320788:pla-1584571731043&abcId=9307911&merchantid=527396131&gclid=Cj0KCQjw7uSkBhDGARIsAMCZNJusjOD_V8eqim6cA-RKJGhF99SjBxLvxqMeQua8USefNwFDmH_VVvIaAuzCEALw_wcB
Possible to use this to extend a carbon fork on a road bike?
It should work. You have to use JB Weld plastic binder high strength. It takes 30 hours to cure.. good luck!! Ride safe.
Are this extenders will work on dualcrowns fork?
Mark- I don’t know why it wouldn’t work. Lube all threads and torque over 30ft lbs if possible. Ride safe!!
how did you put the top cap on?
hello Aim! the allen screw that tightens the stem extender into the tube has a threaded hole for the bearing preload cap to screw into!! Genius! Ride safe. BTW, rode today with no problems. I think I have near 1000 miles on the extender.
does the crown have to seat against the head tube
not sure what you mean here. If you mean does the extender need to go all the way into the tube until it hits the shoulder, then yes! if you need more length there are multiple sizes available. Good luck!!
@@filoncmike since you seemed to have bike knowledge, I was asking about spacing the forks away from the head/steering tube with spacers, like the ones people commonly use on the top side of the head tube, to take up space from a long steerer tube or to raise their handle bars. my proposal is to use spacers below the tube. effectively raising the bike front end and lengthening the wheelbase,, for bigger riders. Moving the fork crown away from the actual edge of the bike frame head tube. I can't see any difference in using the spacers that way, and I was asking another view, from an experienced bike person, like yourself.
@@mrkeopele Interesting concept. My forks are all the tapered type, so you would have to get a bigger diameter spacer and place it under the bottom bearing race if you wanted to space it at the lower end. Then you would have to add a fork extender or maybe you have ordered a new fork with a cut to fit top tube. I don't see any reason why you cant space that down to get more pedal ground clearance. Just be aware the amount you space it up will not translate into equal vertical distance but rather a cosine of the head angle times the hypotenuse. If your head angle is 65 degrees and you space it up 100mm you will only raise the head 42mm. Good luck!!!
como va la adaptación, funciono?
I highly recommend this swap. It is working perfectly! More travel, almost no pedal strikes. 100% improvement. Ride safe!!
excelente! thanks bro @@filoncmike
Its been a year, has the tube cracked yet?
Nope!! All good. Even took it off twice to check. Over 1500 hard single track miles. Ride safe!!
@@filoncmike awesome thanks for the info mate
If im done using the extender how can i remove it its hard to remove with the steel epoxy
Yes Kel! Only epoxy it if you never intend to remove it. I know I will never take it off again! Ride safe!
Can i use dwd40 to remove the steel epoxy
@@KelpSoFunny unfortunately, no wd40 is a water displacing agent. Hence the name “WD”. It will not penetrate or disolve any epoxy. 😀
So how can i remove the metal epoxy because im done using the fork extender
@@KelpSoFunny if you got the extender out already, you will have to sand out the epoxy then hammer in your new star nut.
That's going nowhere 😅🤟🤠💯
From what I've read these do not work well as the ones that bolt over the stem and even then it needs to be a good brand like satori as many are cheap and dangerous.
Well,mst, riding is believing! Mine is still performing perfectly after 2000 miles of hard riding. I didn’t think it would last this long but I have checked it twice and no movement whatsoever. Ride safe!!