Mountain Bike Reviews Forum banner
1 - 20 of 45 Posts

·
Mtbr Forum Sponsor - Homebrewed Components
Joined
·
2,419 Posts
Discussion Starter · #1 ·
I just made up a prototype set of chain tensioners. They weigh in less than 9 grams a piece. They have a bottle opener built in, an idea which i kindly borrowed lol. The chain tensioners aren't side-specific, which means that on one side of the bike, the opener is on the bottom, and on the other side, it's on the top. This makes it convenient if you have your bike right-side up, or up-side down and are trying to open a bottle. They are aluminum, and i put a polished finish on the exposed surfaces. These are just prototypes mind you, so the finished ones will be much cleaner.
I'm just looking for some opinions on them... got any?:D
good or bad are appreciated.
PS: dont mind my beat up PUSS.

 

·
Registered
Joined
·
618 Posts
Looks sharp (literally and figuratively). Not sure the market really needs another tensioner, but those are nice. Maybe do some bling ano colours...
 

·
Registered
Joined
·
551 Posts
That would be pretty cool.

"My bike isn't just a bike... it is also a bottle opener."
 

·
default title
Joined
·
272 Posts
Gorgeous. I want one! (Seriously, what do I have to do?)

Looks pretty thick, getting enough threads into the QR nut?

And I guess on the non-drive side, you'd have to either turn the bike or the beer upside down....
 

·
Mtbr Forum Sponsor - Homebrewed Components
Joined
·
2,419 Posts
Discussion Starter · #8 ·
j e SS e said:
Gorgeous. I want one! (Seriously, what do I have to do?)

Looks pretty thick, getting enough threads into the QR nut?

And I guess on the non-drive side, you'd have to either turn the bike or the beer upside down....
Thanks!
It is about .150" thick. I've made ones that were counterbored to be a little thinner in the past, and they've actually bent from tightening the QR. This i think is a happy medium. My QR nut fits just fine, although a QR for a tandem bike is reccomended for anything with chain tensioners, IMHO.
As for the opener thing, here's my reasoning:
if you lay your bike down or lean it against something, most of the time the drive side is up to prevent damage to the drivetrain (not super neccesary on a SS, but hey, most of us came from gear decent, and old habbits die hard). This way all you have to do is pull the bike upright to use the opener.
On the other hand, when you're wrenching on your bike or if you have a habbit of keeping your bike upsidedown, you can still open your beer on the non-drive side. I could put one on both sides of each tensioner like someone else does with their heavy steel ones, but i'm a minimalist, and the goal was to make them as light as possible, because frankly, i'd rather not have tensioners at all if i could avoid it without spending $$$$. Ok, fine, i'm a weight weinie!:D
This was one of the things i was hoping to get an opinion on. Would you guys rather see them both in the same direction?
And as for getting a set, i suppose i could run off a limited amount if some people were interested in trying them out. Figure maybe $15 a set for the first 10 sets so i can get some feedback?
These are fully CNC'd aluminum, hand polished, and stainless hardware will be included.
Manufactured in my home garage!
 

·
Registered
Joined
·
7,440 Posts
ISuckAtRiding said:
...Figure maybe $15 a set for the first 10 sets so i can get some feedback?...
They look good to me. PM me if you want to sell a set.
 

·
Registered
Joined
·
416 Posts
They look great!!

I already have some for my only track end frame. But boy if I saw this 2 days earlier you would have a customer.

But a bottle opener is unnecessary. SPD's work fine!
 

·
Mtbr Forum Sponsor - Homebrewed Components
Joined
·
2,419 Posts
Discussion Starter · #15 ·
marty_hd said:
Any experience with the screw wandering? Did you locktite it or once set does it tsya there?

I'd be interested in a set.

Cheers,
Marty
that screw is just there for demonstration purposes. i'll be ordering some stainless steel replacements on monday, and jam nuts will be included. But i've been using a similar set on my bike that i made years ago without a jam nut, and they dont move very much if at all.

If anyone wants a set, shoot me a pm with your zip code and/or address and i'll shoot you a price shipped. My zip is 92027 if you want to check yourself, and i'll probably mail them via usps priority unless you want something different.
Dan
 

·
default title
Joined
·
272 Posts
ISuckAtRiding said:
Thanks!
It is about .150" thick. I've made ones that were counterbored to be a little thinner in the past, and they've actually bent from tightening the QR. This i think is a happy medium. My QR nut fits just fine, although a QR for a tandem bike is reccomended for anything with chain tensioners, IMHO.
As for the opener thing, here's my reasoning:
if you lay your bike down or lean it against something, most of the time the drive side is up to prevent damage to the drivetrain (not super neccesary on a SS, but hey, most of us came from gear decent, and old habbits die hard). This way all you have to do is pull the bike upright to use the opener.
On the other hand, when you're wrenching on your bike or if you have a habbit of keeping your bike upsidedown, you can still open your beer on the non-drive side. I could put one on both sides of each tensioner like someone else does with their heavy steel ones, but i'm a minimalist, and the goal was to make them as light as possible, because frankly, i'd rather not have tensioners at all if i could avoid it without spending $$$$. Ok, fine, i'm a weight weinie!:D
This was one of the things i was hoping to get an opinion on. Would you guys rather see them both in the same direction?
And as for getting a set, i suppose i could run off a limited amount if some people were interested in trying them out. Figure maybe $15 a set for the first 10 sets so i can get some feedback?
These are fully CNC'd aluminum, hand polished, and stainless hardware will be included.
Manufactured in my home garage!
No I totally dig it as it is. Though I use the Surlys, I do find them bulky and heavy. And it's annoying having to use the little washer with a QR axle.

Every bit on my KM is polished (all my bikes, actually), so this is perfect.

Thanks for being. :thumbsup:
 

·
Mtbr Forum Sponsor - Homebrewed Components
Joined
·
2,419 Posts
Discussion Starter · #17 ·
j e SS e said:
No I totally dig it as it is. Though I use the Surlys, I do find them bulky and heavy. And it's annoying having to use the little washer with a QR axle.

Every bit on my KM is polished (all my bikes, actually), so this is perfect.

Thanks for being. :thumbsup:
Cool, thanks man!
Glad to see my work is worthy of such a mythical creature as a Karate Monkey!

I also am hooked on polishing stuff. I don't know why, i guess I've always been attracted to shiny things.:D
 

·
Mtbr Forum Sponsor - Homebrewed Components
Joined
·
2,419 Posts
Discussion Starter · #18 ·
hey guys, for whoever's interested, shipping is $4.95 american flat rate to anyone in the US, and $12.95 or international. This is shipped via USPS Priority, so it'll get to you quick, at least stateside. If anyone wants a different shipping method, let me know.
 

·
Registered
Joined
·
1,894 Posts
[QUOTE=j e SS e

Every bit on my KM is polished (all my bikes, actually), so this is perfect.

Stuff it with polished already. Let the 80s BMX days die.
 
1 - 20 of 45 Posts
Top