Would like to offer a new engine mounted chain tensioner to the motorbike community!

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SuedePflow

New Member
Jun 12, 2013
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Coloma, MI
Re: Would like to offer a new engine mounted chain tensioner to the motorbike communi

Is there a groove in the skate board wheel for the chain to ride in? If not what keeps the chain from riding off?
It is not grooved. As long as the sprockets are properly aligned and there is no chain slack, how can the chain go anywhere? At least, that's my reasoning as to why a chain guide isn't needed. Unless I'm missing something...
 

turbobuick1

New Member
Nov 6, 2012
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Thumb of Michigan
Re: Would like to offer a new engine mounted chain tensioner to the motorbike communi

It is not grooved. As long as the sprockets are properly aligned and there is no chain slack, how can the chain go anywhere? At least, that's my reasoning as to why a chain guide isn't needed. Unless I'm missing something...
Exactly, you are right on the money. The roller is too close to the engine for the chain to roll off of it. The only way that could happen would be if you have a very, very misaligned rear sprocket with way too much lateral runout, which would be difficult, if not impossible to do. A groove or track in the roller for this tensioner is unnecessary, and would only serve to increase the cost of the tensioner, without any added benefit.

James, that is a good question though, and I'm glad you brought it up. Thanks for your interest! brnot
 
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Pluto

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Sep 3, 2013
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Chicago
Re: Would like to offer a new engine mounted chain tensioner to the motorbike communi

I only have a few miles on my new tensioner but I think it is great. Easy install, quality parts.

I was planning on no tensioner but find this to be the perfect fix for what I think is a very weak part of the kit. I shortened the chain to the point of almost not needing the wheel but so far it is a perfect solution for me

Thanks...
 
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turbobuick1

New Member
Nov 6, 2012
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Thumb of Michigan
Re: Would like to offer a new engine mounted chain tensioner to the motorbike communi

Just a small update, but I have very few tensioners left! I am waiting on a supplier to deliver some aluminum plate to my shop, which may be as much as two weeks away. As always, a big thanks to all of the customers so far!usflg
 

turbobuick1

New Member
Nov 6, 2012
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Thumb of Michigan
Re: Would like to offer a new engine mounted chain tensioner to the motorbike communi

Sold out, but only for a few days. More will be available on oct 1st, which is this tuesday. Thanks for your patience and understanding!brnot
 

turbobuick1

New Member
Nov 6, 2012
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Thumb of Michigan
Re: Would like to offer a new engine mounted chain tensioner to the motorbike communi

Back on track! There was a shortage of materials for a few days, but I am glad to say I have a lot of tensioners ready to ship out! Check out the link to my ebay listing in my signature below!
 

Groove

New Member
Nov 2, 2012
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Lexington, KY
Re: Would like to offer a new engine mounted chain tensioner to the motorbike communi

Is there a groove in the skate board wheel for the chain to ride in? If not what keeps the chain from riding off?
Did someone say Groove? Actually I was curious about that as well. I am running two of these and I was pleasantly surprised to find out that the groove is not necessary. It doesn't have any problems with master links or half links either I've found. IDK...this guy has his own sales force now, he should be paying us commish! :D
 

xseler

Well-Known Member
Apr 14, 2013
2,886
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OKC, OK
Re: Would like to offer a new engine mounted chain tensioner to the motorbike communi

Did someone say Groove? Actually I was curious about that as well. I am running two of these and I was pleasantly surprised to find out that the groove is not necessary. It doesn't have any problems with master links or half links either I've found. IDK...this guy has his own sales force now, he should be paying us commish! :D

Whoop whoop!!
 

turbobuick1

New Member
Nov 6, 2012
98
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Thumb of Michigan
Re: Would like to offer a new engine mounted chain tensioner to the motorbike communi

Did someone say Groove? Actually I was curious about that as well. I am running two of these and I was pleasantly surprised to find out that the groove is not necessary. It doesn't have any problems with master links or half links either I've found. IDK...this guy has his own sales force now, he should be paying us commish! :D
Haha, I appreciate you and xseler spreading the good word!! And thanks for sharing your experience with both of your tensioners.

In completely unrelated news, I've got the day off work and waiting on a Sunlite Deluxe Springer Fork (Monark-style) to arrive today! Ive been running the common reproduction Monark springer on a Huffy Nel Lusso, but I feel like this one will have a superior design! It can accomodate wider tires, has a integrated mount for disc brakes and a bracket for drum brakes, and so on. I will post a picture later today!
 

maurtis

New Member
Dec 14, 2011
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Kyle, TX
Awesome, I look forward to seeing the new fork! I am thinking about one for my bike since my front tire is supposedly a little wide for the regular Monark as well.

Where did you get it from, and was it the 1" threaded or 1 1/8" threadless? I have only seen the threadless in stock on Amazon and Niagara.
 

mapbike

Well-Known Member
Mar 14, 2010
5,502
109
63
Central Area of Texas
Re: Would like to offer a new engine mounted chain tensioner to the motorbike communi

Awesome, I look forward to seeing the new fork! I am thinking about one for my bike since my front tire is supposedly a little wide for the regular Monark as well.

Where did you get it from, and was it the 1" threaded or 1 1/8" threadless? I have only seen the threadless in stock on Amazon and Niagara.
Here is a pic that is on www.niagaracycle.com

 

turbobuick1

New Member
Nov 6, 2012
98
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Thumb of Michigan
Re: Would like to offer a new engine mounted chain tensioner to the motorbike communi

I got the Sunlite Deluxe fork! I'm definitely impressed with the quality. I already own the more common Monark Type II reproduction springer fork, but can say with confidence that this Sunlite fork has a better design in several areas.

Couple things I like:

1) It's TIG welded chromoly.

2) It has a mount for disc brakes and a bracket to hold onto the brake arm on a drum-type hub.

3) Here's what really awesome, and no one seems to mention this.

The hub axle, and brake mounts (both for disc and drum) are mounted on the front fork. This means that the hub axle and brake mounts are in a fixed relation to each other.

The more common Monark reproduction has the axle mounted on the rocker arm. Nothing wrong with this, as the original Monark was designed the same. But, this means that the axle is constantly changing it's relationship to either fork.

What happens is, when you install a drum brake hub on the Monark repro, and you rigidly attach it to either the front or rear fork, it locks up the entire fork - no compression of the springs whatsoever. In fact, if you did this and hit a big bump, I feel that the hub would crack/break. This is because the relation of the axle to either fork constantly changes, due to the axle being mounted on the rocker arm. It's something you would almost have to see to appreciate, but when you compress the front fork on a Monark repro, you can watch the drum brake arm swing back and forth.

To get away with using a Sturmey drum hub on a Monark repro, I welded a bracket to the rear fork which still gives the brake arm something to brace itself against, but allows swing room for the brake arm, as the springs compress and rebound.

But this is not needed with the Sunlite fork! Being that the hub axle position and brake mounts are fixed in relation to each other, you can mount the brake arm rigidly to the fork, with no binding issues or the like.

There is a reason that both Felt (discontinued now), and Sportsman Flyer (similiar design, but much heavier duty) use this design.


I'm using this fork in combination with a Sturmey Archer XL-FD 90mm drum brake (LOVE this hub, great braking power).

These pics are not the best, but they give you an idea!

Note the additional spacers on top of the springs to accomodate different steerer tube lengths. I removed these in order to work with my bike.

Also note the small tube welded to the front fork for a cable to be routed through (only on the disc brake side).
 

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MotorBicycleRacing

Well-Known Member
Jul 28, 2010
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SoCal Baby!!!
www.facebook.com
Re: Would like to offer a new engine mounted chain tensioner to the motorbike communi

turbobuick1, thanks for sponsoring Socal Motor Bicycle Racing with
your chain tensioner! :)

Going to make a sort after prize for the 66 cc 2 stroke Amateur class race.

Now that I have one to play with I gotta say it looks like a high quality
bullet proof solution to taming the chain on a China girl build.

Too bad that you live too far away to come out to the Socal races.
thanks again!
 

turbobuick1

New Member
Nov 6, 2012
98
0
0
Thumb of Michigan
Re: Would like to offer a new engine mounted chain tensioner to the motorbike communi

Just a small note, I am changing my shipping policy. If ordering two or more tensioners, I will ship them for a flat $5.15. So whether you order 1 or 4 tensioners, shipping will be $5.15 (for shipping in the U.S. only). The shipping policy on ebay will be updated tonight. Thanks to all of my customers so far!
 

turbobuick1

New Member
Nov 6, 2012
98
0
0
Thumb of Michigan
Re: Would like to offer a new engine mounted chain tensioner to the motorbike communi

USPS flat rate is a great thing for things like this ....
Indeed it is, every tensioner I've shipped has been in a USPS flat rate box. They ship pretty quickly throughout the U.S.! brnot
 
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xseler

Well-Known Member
Apr 14, 2013
2,886
151
63
OKC, OK
Re: Would like to offer a new engine mounted chain tensioner to the motorbike communi

Indeed it is, every tensioner I've shipped has been in a USPS flat rate box. They ship pretty quickly throughout the U.S.! brnot

Ordered on a Saturday, received on a Monday ---- Michigan to Oklahoma.
 

turbobuick1

New Member
Nov 6, 2012
98
0
0
Thumb of Michigan
Re: Would like to offer a new engine mounted chain tensioner to the motorbike communi

Still offering these for sale, and plan to a while to come! Remember, if ebay is not your thing, you can buy directly from me (usually through paypal, but i will work with ya if you prefer check, etc).

if you could use them, the allen keys are included if you buy direct. Its a small way for me to thank you by avoiding ebay's fees.

Thanks to everyone who has purchased one so far! If you have a picture, I would love to see it on your bike.
 
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