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Author Topic: Single Speed conversion single speed to gears  (Read 2032 times)

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moleminiman

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Single Speed conversion single speed to gears
« on: October 29, 2008, 09:45:33 AM »
I have a MonoCog 29er that I want to be able to convert back and forth from single speed to Geared I'm just looking for suggestions.  I was thinking of just doing 3 gears upfront with a new crank and chain tensioner................or 9 speed cassette, derailer and a new rear wheelset ...............i'm also looking for keeping my cost to a minimum.

Forrest
« Last Edit: October 29, 2008, 12:53:33 PM by Gregg »

Offline treadlight

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Re: Single Speed conversion single speed to gears
« Reply #1 on: October 29, 2008, 10:10:27 AM »
I am not sure if you can install a cassette on a "Monocog" since it is ss specific even if you replace the rear wheel make sure the new wider hub fits. If it will not fit then yes you can probably install two chainrings with a front derailleur.


btw Forrest...the thread title is very misleading  ;)
« Last Edit: October 29, 2008, 12:54:01 PM by Gregg »

moleminiman

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Re: Single Speed conversion single speed to gears
« Reply #2 on: October 29, 2008, 11:22:27 AM »
the rear wheelset for a  single speed and a geared bike have the same spacing I checked on that.........I'm just wondering if anyone has done something like this and could give some tips
« Last Edit: October 29, 2008, 12:54:25 PM by Gregg »

Offline FACTORe

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Re: Single Speed conversion single speed to gears
« Reply #3 on: October 29, 2008, 11:58:02 AM »
the rear wheelset for a  single speed and a geared bike have the same spacing I checked on that.........I'm just wondering if anyone has done something like this and could give some tips


yeah - my SS wheels and converted geared wheels both fit my frame the same
« Last Edit: October 29, 2008, 12:54:48 PM by Gregg »

Offline benjibbad

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Re: Single Speed conversion single speed to gears
« Reply #4 on: October 29, 2008, 12:25:44 PM »
If you are looking for gears on a SS you should check out Sram's new Hammerschmidt cranks.  They are a 22 tooth front with chain guide, but with the flip of a switch it converts to a 36 tooth equivilent.  No changing rings, it does something in the BB so 1 turn of the chranks equals 1.6 turns of the gear ring.  Sounds pretty cool
« Last Edit: October 29, 2008, 12:55:20 PM by Gregg »
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Offline Jimbo

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Re: Single Speed conversion single speed to gears
« Reply #5 on: October 29, 2008, 02:10:59 PM »
The Hammerschmidt has an arrangement of sun gears and pawls where the chainrings would be.  Hitting the shifter switches it between the two ratios.  It's available in freeride or all-mountain versions.  It is pretty neat stuff indeed.
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Re: Single Speed conversion single speed to gears
« Reply #6 on: October 29, 2008, 02:13:59 PM »
The Hammerschmidt has an arrangement of sun gears and pawls where the chainrings would be.  Hitting the shifter switches it between the two ratios.  It's available in freeride or all-mountain versions.  It is pretty neat stuff indeed.

you will be riding ss now

moleminiman

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Re: Single Speed conversion single speed to gears
« Reply #7 on: November 03, 2008, 12:03:02 PM »
if anyone is interested I did alot of research and Found a Chain Tensioner Made by DMR that is going to work I hope.  Since I want my Single speed to convert back forth from single to 9 speed. I need to find a 10mm bolt on hub that has disc brakes.  The only thing I could find is a down hill hub that met the requirements.  You can't use a skewer if you are going to use the hub for single speed ........why? you ask.  Too much torque will make the wheel slide.


here is my part:   

http://www.ebikestop.com/dmr_10mm_chain_tugs_with_derailleur_hanger_pair-FS3102.php?PARTNER=qbike

 

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