Single speed
Post new topic   Reply to topic    MTBE Forum Index -> The Workshop
View previous topic :: View next topic  
Author Message
SeanO



Joined: 17 Feb 2008
Posts: 1644

PostPosted: Mon May 19, 2008 11:34 pm    Post subject: Single speed Reply with quote

Hi,
I've just bought a single speed conversion kit, no idea why, it seemed like a good idea at the time. Confused Embarassed
It comes with a 16T cog. Does anybody know if this equals the middle cog in a normal 9 speed cassette? I guess it must be somewhere near. Trying to get an idea on what I'll be able to ride with that set-up, before I jump in with both feet.

_________________
Cheers, Sean
Back to top
View user's profile Send private message

Register & log in to remove these advertisements!
Filthy



Joined: 13 Apr 2008
Posts: 1363
Location: Costa del Smog

PostPosted: Tue May 20, 2008 11:12 am    Post subject: Reply with quote

32 front 16 rear is roughly equal to middle middle on a standard drivetrain, I use an 18t rear cog as I'm a lazy fat knacker. You should be able to ride most stuff, just requires a bit more effort.
Back to top
View user's profile Send private message
Gunner



Joined: 15 Apr 2007
Posts: 29326
Location: Under Whitestone-Cliffe on the Lake.

PostPosted: Tue May 20, 2008 7:34 pm    Post subject: Reply with quote

What sort of bike are you thinking of "converting" Sean0 Question
_________________
Your poison letter, your telegram, just goes to show you don't give a damn!!!
Back to top
View user's profile Send private message Visit poster's website
SeanO



Joined: 17 Feb 2008
Posts: 1644

PostPosted: Wed May 21, 2008 12:20 am    Post subject: Reply with quote

Gunner wrote:
What sort of bike are you thinking of "converting" Sean0 Question

Its my DMR Switchback, steel hardtail. Been using it over winter to commute to work and most of the drivetrain is well corroded. I didn't realise how much damage the road salt could do!! Shocked
So, rather than replacing cassette/chain/deraileur I thought I'd just go single speed. I use the bike for races, child carrying and commuting at the mo but I may be making a move soon so my commute may become longer. Too long for a MTB I think so would look at getting a road bike.
With the new set-up would I need a new chain or does the wear rule not apply to single cogs (I'm suspecting it does!)?
Also, how much difference in chain length is there between fitting say 16T and 14T cogs? Would the chain tensioner take up the slack or would I have to add a link or 2?

_________________
Cheers, Sean
Back to top
View user's profile Send private message
Gunner



Joined: 15 Apr 2007
Posts: 29326
Location: Under Whitestone-Cliffe on the Lake.

PostPosted: Wed May 21, 2008 6:03 pm    Post subject: Reply with quote

I don't really know the answers to that, perhaps JohnC would know, he did a single speed conversion on one of his bikes for Darren, here's the link to the post if you haven't already seen it:


http://www.mtbe.co.uk/single-speed-t525.html


Wink

_________________
Your poison letter, your telegram, just goes to show you don't give a damn!!!
Back to top
View user's profile Send private message Visit poster's website
SeanO



Joined: 17 Feb 2008
Posts: 1644

PostPosted: Thu May 22, 2008 8:46 pm    Post subject: Reply with quote

Ok, thanks.
I guess I'll just have to "suck it & see". Smile

_________________
Cheers, Sean
Back to top
View user's profile Send private message
tomlevell



Joined: 13 Apr 2008
Posts: 989

PostPosted: Fri May 23, 2008 7:30 pm    Post subject: Reply with quote

32:16 it's the law. (although in winter that can be a bit of a chore if you ride in lots of mud :0)

How to convert a geared bike to a SS using a rear mech as a tensioner.
http://www.onefuckingspeed.com/article.php?file=articles/converting_to _ss.txt
Back to top
View user's profile Send private message Visit poster's website
darrenvt2



Joined: 11 Mar 2008
Posts: 243

PostPosted: Fri May 23, 2008 8:34 pm    Post subject: single speed Reply with quote

Loving it everytime i get on the single speed Johnc did for me I feel like a ten year old again,you do find yourself bouncing a bit on the seat when you get up to a certain speed as you dont have the gears to change up to anymore.All I can say is give it a go
Back to top
View user's profile Send private message
johnc



Joined: 21 Dec 2007
Posts: 463
Location: stockton

PostPosted: Thu May 29, 2008 8:23 pm    Post subject: Reply with quote

glad your enjoying the bike, the gear ratio on it is 38/16 Very Happy
Back to top
View user's profile Send private message
SeanO



Joined: 17 Feb 2008
Posts: 1644

PostPosted: Fri May 30, 2008 1:43 am    Post subject: Reply with quote

Hi John,
I was thinking of having a play with 44:14 for commuting to work, or is that just insane? I tend to just use the big ring and the 3 smallest cogs on the back. I've got semi slicks on so the wheels run with very little resistance.

_________________
Cheers, Sean
Back to top
View user's profile Send private message
tomlevell



Joined: 13 Apr 2008
Posts: 989

PostPosted: Fri May 30, 2008 12:49 pm    Post subject: Reply with quote

Assuming your on 26" wheels that's a 81" gear which is pretty big.

44:16 would probably be better and a more sensible 71" gear.

Obviously you may be fine or not. I run a 65" gear on my fixy which is used on the flat mostly.

Also 14 tooth cogs don't get a good wrap of chain around them so are more prone to unshipping the chain and possibly slipping under power when ran as a single gear.
Back to top
View user's profile Send private message Visit poster's website
SeanO



Joined: 17 Feb 2008
Posts: 1644

PostPosted: Fri May 30, 2008 7:24 pm    Post subject: Reply with quote

tomlevell wrote:
Assuming your on 26" wheels that's a 81" gear which is pretty big.

44:16 would probably be better and a more sensible 71" gear.

Obviously you may be fine or not. I run a 65" gear on my fixy which is used on the flat mostly.

Also 14 tooth cogs don't get a good wrap of chain around them so are more prone to unshipping the chain and possibly slipping under power when ran as a single gear.


Thanks for that info, Tom. There are no real hills in my commute. in mtb terms it is flat. I'm running 26" wheels and thinking about it, 44:16 would be better and not affect the time too much. The kit came with a 16t cog anyway.
You ride a fixy!? Thats a step of madness above single speed to me Laughing

_________________
Cheers, Sean
Back to top
View user's profile Send private message
tomlevell



Joined: 13 Apr 2008
Posts: 989

PostPosted: Fri May 30, 2008 8:36 pm    Post subject: Reply with quote

It's no big deal on the road (after the first time you forget).
I do have about a 70"ish gear on the other side but don't tend to use it.
Offroad is a quite amusing.

As you've already got the 16 just use it and get a bigger gear later if you need it.
Back to top
View user's profile Send private message Visit poster's website
Display posts from previous:   
Post new topic   Reply to topic    MTBE Forum Index -> The Workshop All times are GMT + 1 Hour
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum