Twin Power Is Launching A New Tension Reliever Manual Primary Chain Adjuster

PrimaryChainTensionerTwin Power continues to add to their growing line of aftermarket parts and accessories for V-Twin motorcycles. The newest addition is the Tension Reliever Manual Primary Chain Adjuster, designed to eliminate previous issues with keeping the primary chain at the right tension.

“An over-tightened primary chain is known to cause premature failure of the engine, transmission and primary bearing as well as to cause other complications,” says James Simonelli, Brand Manager for Twin Power. “This problem plagues 2006 Dyna as well as 2007 and later Harley Davidson® Big Twin models. These motorcycles came equipped with an automatic, ratcheting primary chain tensioner, which is the culprit.”

Twin Power has developed a solution, which keeps the problem of over-tightening from occurring. It replaces the stock factory adjuster, allowing a proper primary chain adjustment of 5/8–7/8 inches of free play when cold. It is machined from 6061-T6 aluminum and is hard anodized for durability. It also features a 4140 steel adjusting screw and heavy-duty nylon 6/6 shoe. 100% made in USA and easy-to-adjust, it uses stock mounting hardware. The chain adjustment and tension check will require the removal of the outer primary cover. Please note, the Twin Power Tension Reliever Manual Primary Chin Adjuster for use with a 34 tooth sprocket only.

“Our new adjuster will help riders keep their primary chain at the right tension without the frustration they may have experienced in the past with the factory adjuster. This will surely add longevity to the machine and provide them with peace of mind,” says Simonelli.

The Twin Power Tension Reliever Manual Primary Chain Adjuster can be ordered through your local Tucker Rocky/ Biker’s Choice dealer.

Zipper's

15 Responses to “Twin Power Is Launching A New Tension Reliever Manual Primary Chain Adjuster”


  1. 1 Brenze Sep 1st, 2016 at 10:09 am

    Overdue. Great replacement part.

  2. 2 Gunny67 Sep 1st, 2016 at 1:32 pm

    looks great, having to pull the outer cover to check/re-adjust, thats not a cheap gasket to replace every time.
    What do all the experts on this forum think of the Hayden M6 adjuster ? not a nice looking as the Twin Power,, but ………

  3. 3 rebel Sep 1st, 2016 at 3:38 pm

    seems like the part number is never included in press releases #216094 MANUAL CHAIN TENSIONER retail $195, nice looking functional item, agree it’s overdue.

  4. 4 pabstbluerigid Sep 1st, 2016 at 4:08 pm

    Baker Drivetrain came up with a similar solution almost some 3 years ago? and then a month or 3 later, lol…an almost identical piece appeared in the new “Screamin’ Eagle Catalog.” Jus’ like Bert was rockin’ “six’s” long before HD go near that table. A true innovator/engineer. This piece merely another approach to a real problem that won’t go away.

  5. 5 pabstbluerigid Sep 1st, 2016 at 4:11 pm

    check out the “Attitude Adjuster” on the Baker site…

  6. 6 Mike Sep 1st, 2016 at 6:01 pm

    So why can’t Harley come up with this little piece of metal and install it.retrofit it on their bikes? Makes you wonder.

  7. 7 kingcycles Sep 1st, 2016 at 8:38 pm

    The old setup they used from 1965 until they eliminated it worked fine.

  8. 8 Willyd Sep 2nd, 2016 at 10:07 am

    The only drawback is the one Gunny67 stated that to check and/or adjust the primary cover has to be removed. I don’t think any of the Harley primary covers with the removable inspection plate will retrofit. Baker makes a primary cover with an inspection plate but the cover is very expensive.

  9. 9 Willyd Sep 2nd, 2016 at 10:14 am

    Does anybody make a reasonable priced primary cover with an inspection plate cover. Baker makes one but it is really, really pricey

  10. 10 simon Sep 3rd, 2016 at 7:01 am

    i hope it,s not noisy like the sceaming eagle one, it,s scary

  11. 11 1550tc Sep 3rd, 2016 at 1:32 pm

    Long before Bert, SE and this guys

    Hayden Enterprises M6 Primary Chain Tensioner M6-BT07

  12. 12 Industryguy Sep 4th, 2016 at 5:44 pm

    Hayden M6 automatic tensioner is all you need.

  13. 13 John M Sep 5th, 2016 at 6:21 pm

    The Hayden is junk, I installed one in my 124″ 07 roadking. With just under 2000 miles on it, the white adjuster shoe broke in half and filled the primary with little bits of ground up plastic.

    After checking it out it turned out to be a common problem.

    I threw it out and put in the Baker attitude adjuster and haven’t had a problem since.

    ~John

  14. 14 andrew Sep 15th, 2016 at 5:15 pm

    harley went to the automatic adjuster because people do not know how to properly adjust their primary chains which in turn led to premature failure of other components. just another product the “home mechanic” can misuse.

  15. 15 JP Jul 2nd, 2017 at 4:46 pm

    I went with the Baker Attitude Adjuster. Couldn’t be happier with it.

    This unit looks too much like the POS Screaming Eagle part, which was reported to be noisy as hell.

    I don’t mind havin’ a look-see in my primary every 10,000 miles or so. So far, no chain adjustment has ever been needed since I installed it.

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