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 Post subject: Bailout gear adaptor
PostPosted: Wed Mar 19, 2014 11:39 am 
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timid kitty
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Joined: Wed Mar 05, 2014 9:58 pm
Posts: 35
so went to 1x as I like to be fashionable, but old..and hills.. and 9 speed...and short cage mech...what to do?

off to the mancave for some tinkering :)

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116g with ally bolts and a XT 40 chainring 8-)

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zee mech just about copes, I added another link after I took this pic

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had a few laser cut by local company, here is a link to a .dxf if you want to make one, or feel free to send me a PM if you want to help finance my riding! ;)


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 Post subject: Re: Bailout gear adaptor
PostPosted: Wed Mar 19, 2014 2:10 pm 
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bad kitty!
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Joined: Tue Jan 15, 2013 11:22 am
Posts: 2342
So iffy is now in the industry? ;)


Magura :)

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 Post subject: Re: Bailout gear adaptor
PostPosted: Wed Mar 19, 2014 4:03 pm 
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timid kitty
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iffy industries! yes indeed :lol:


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 Post subject: Re: Bailout gear adaptor
PostPosted: Wed Mar 19, 2014 7:50 pm 
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bad kitty!
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Joined: Tue Jan 15, 2013 11:22 am
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I dare you to laser that on the next batch.


Magura :)

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 Post subject: Re: Bailout gear adaptor
PostPosted: Wed Mar 19, 2014 11:39 pm 
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friendly kitty

Joined: Wed Nov 13, 2013 11:38 pm
Posts: 294
Location: Indiana
I went 1x with 9 speed, but dropped to a 30t chain ring. If that doesn't work out, I might have to join in your project.
I think I have a 40t ring. It is a Race Face DH ring and has some edge below the teeth I think. So maybe I could file in some ramps for up shifts. If spacing works like the XT.
Which cog did you give up?


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 Post subject: Re: Bailout gear adaptor
PostPosted: Thu Mar 20, 2014 1:55 am 
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big hucker
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Joined: Wed Jan 16, 2013 7:32 pm
Posts: 3086
Location: Dallas, TX
Iffy Industries, also known as I2 (can't make the squared version of 2).

Seriously, that adapter is a good idea. How does it shift?

I'm also running 1x10 on both of my mountain bikes and each has a 30t up front.

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 Post subject: Re: Bailout gear adaptor
PostPosted: Thu Mar 20, 2014 10:58 am 
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timid kitty
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Joined: Wed Mar 05, 2014 9:58 pm
Posts: 35
i messed around with loose sprockets and ended up with 11,13,15,17,20, which I find a good spread for any flowy stuff and gradual climbs , then a big jump to 26,30,36,40, which is kinda my small front ring replacement.

to make a clean shift from the 20>26 I have to "overshift" a little. If I shift 20>30 i climbs straight up.

I shifts very well IMO I am quite happy with it, on the vid of it on a stand, I tried to show worst scenario with what happens on the 20>26 shift. I made this using an old worn/dry chain (I was testing how it coped with different lengths) so it sounds a bit nasty!
In the real world it is working very well and is as quiet as anything else I have used.



sorry for the wonky aspect ratio on the vid

PS for all afficionados of bouncy bits.. the suspension tuning tips may be of interest ;)


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 Post subject: Re: Bailout gear adaptor
PostPosted: Sat Mar 22, 2014 2:16 am 
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friendly kitty

Joined: Wed Nov 13, 2013 11:38 pm
Posts: 294
Location: Indiana
The 40t I have is 5 bolt 130mm circle, so that won't do for me if I decide to try some version of this.


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 Post subject: Re: Bailout gear adaptor
PostPosted: Sat Mar 22, 2014 11:20 pm 
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timid kitty
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Joined: Sat Dec 14, 2013 10:08 pm
Posts: 59
Location: Ontario Canada
Awesome-sauce! Love the idea and the clean DIY execution.

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 Post subject: Re: Bailout gear adaptor
PostPosted: Thu Mar 27, 2014 10:28 am 
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timid kitty
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Joined: Wed Mar 05, 2014 9:58 pm
Posts: 35
Just in case anyone is thinking of trying this with a 44T chainring.

SRAM X7,X9 guide pulley and cage are not able to clear the chainring, not surprising really!! :o


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 Post subject: Re: Bailout gear adaptor
PostPosted: Thu Aug 21, 2014 6:23 pm 
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timid kitty
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Joined: Wed Mar 05, 2014 9:58 pm
Posts: 35
changed the 20t for a 21, world of difference :)


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 Post subject: Re: Bailout gear adaptor
PostPosted: Fri Aug 22, 2014 9:14 am 
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bad kitty!
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Joined: Tue Jan 15, 2013 11:22 am
Posts: 2342
So, how is the sales going? I've seen IffyIndustries mentioned loads of places, but are people actually buying those?


Magura :)

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 Post subject: Re: Bailout gear adaptor
PostPosted: Fri Aug 22, 2014 9:37 am 
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timid kitty
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Joined: Wed Mar 05, 2014 9:58 pm
Posts: 35
:lol: Really? I'm famous!?

It urprises me how popular its been, quite a few happy chappies out there using it, one chap even made a 38/44 combo sandwich work after modding the RD a bit!

only bad news is its not really compatible with a lot of 10 speed cassettes as the 104 spacing fouls the alloy carriers on most of them, you can only fit 2 bolts cleanly and there is not really any room to start shaving bits off them.
.still that was never really the intended use, and most folk with a nice modern 10sp setup will happily spend £50 on a CNC alloy ring, small potoatoes on a modern MTB.


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