Hi all
Well I was on ebay the other day and somehow bought a new bike...and an extra frame. So from a single bike I am somehow now going to have 3. Still yet to work out how to bring up the subject with the missus
Anyway, I want to convert my current bike, a Malvern Star Oppy C5 to a single-speed. I thought this would be easy, however I got confused when the whole bottom bracket issue came to light.
The Oppy runs a Shimano 105 5600 group currently which I am planning to remove, except for the Hollowtech II bottom bracket. Now I guess my questions are:
1. What crankset should I be looking for to work with the bottom bracket
2. Are there any kits people recommend for converting a mavic wheel sub to be used for single speed?
3. Will I need a chain tensioner?
Any and all help appreciated.
Cheers
Converting to single speed
-
- Posts: 34
- Joined: Thu Sep 16, 2010 10:36 pm
Converting to single speed
Postby Mat » Thu Feb 28, 2013 2:30 pm
2008 Giant CRX4 - Daily Commuter (Gatorskins)
2011 Malvern Star Oppy C5 - Weekend Warrior (Conti Race + Michelin Pro Race 3)
2011 Malvern Star Oppy C5 - Weekend Warrior (Conti Race + Michelin Pro Race 3)
- HLC
- Posts: 722
- Joined: Sun Mar 04, 2012 11:23 pm
- Location: Sydney.
Re: Converting to single speed
Postby HLC » Thu Feb 28, 2013 2:55 pm
1. Just get another cheap Hollowtech II crankset and remove one of the chainrings. Probably dozen's on ebay.Mat wrote:Hi all
Well I was on ebay the other day and somehow bought a new bike...and an extra frame. So from a single bike I am somehow now going to have 3. Still yet to work out how to bring up the subject with the missus
Anyway, I want to convert my current bike, a Malvern Star Oppy C5 to a single-speed. I thought this would be easy, however I got confused when the whole bottom bracket issue came to light.
The Oppy runs a Shimano 105 5600 group currently which I am planning to remove, except for the Hollowtech II bottom bracket. Now I guess my questions are:
1. What crankset should I be looking for to work with the bottom bracket
2. Are there any kits people recommend for converting a mavic wheel sub to be used for single speed?
3. Will I need a chain tensioner?
Any and all help appreciated.
Cheers
2. Any single speed 'conversion kit' on ebay will do. It just replaces all but 1 of the sprockets in the cassette with spacers.
3. Depends on what gear you choose to run. You may find a magic gear and can cut your chain to the correct length without the risk of it coming off.
- europa
- Posts: 7334
- Joined: Sun Jul 16, 2006 10:51 am
- Location: southern end of Adelaide - home of hills, fixies and drop bears
Re: Converting to single speed
Postby europa » Sun Mar 03, 2013 12:34 am
The Oppy has vertical dropouts so chain tension is an issue.
The "magic gear" concept works, particularly with the help of a half link.
For initial tests, you can use your deraileur as a chain tensioner, just adjust it to suit your cog.
A new rear wheel with an Eno (eccentric) hub is the best move ... and far and away the most expensive. The Eno hubs are very good though so they are worth it for a long term application.
As mentioned above, conversion kits work. You can also a racing bmx hub plus spacers or pull apart cassettes to use one cog and the spacers.
I'd encourage the experiment, but don't do anything expensive or irreversible until you've tried and proven it. Personally, I think that SS is only half the job and you'll gain a lot more by going to fixed gear.
The "magic gear" concept works, particularly with the help of a half link.
For initial tests, you can use your deraileur as a chain tensioner, just adjust it to suit your cog.
A new rear wheel with an Eno (eccentric) hub is the best move ... and far and away the most expensive. The Eno hubs are very good though so they are worth it for a long term application.
As mentioned above, conversion kits work. You can also a racing bmx hub plus spacers or pull apart cassettes to use one cog and the spacers.
I'd encourage the experiment, but don't do anything expensive or irreversible until you've tried and proven it. Personally, I think that SS is only half the job and you'll gain a lot more by going to fixed gear.
I had a good bike ... so I fixed it
- bychosis
- Posts: 7271
- Joined: Sat Jan 14, 2012 1:10 pm
- Location: Lake Macquarie
Re: Converting to single speed
Postby bychosis » Sun Mar 03, 2013 7:41 am
Hate it when that happens.Mat wrote: Well I was on ebay the other day and somehow bought a new bike...and an extra frame.
bychosis (bahy-koh-sis): A mental disorder of delusions indicating impaired contact with a reality of no bicycles.
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