Retrobike Forum Index

It is currently Sat Dec 03, 2016 6:43 pm

* Login   * Register * Search  * FAQ



Post new topic Reply to topic  [ 18 posts ]  Go to page 1, 2  Next
Author Message
PostPosted: Tue Sep 03, 2013 11:08 am 
Retro Guru
User avatar

Joined: Wed Apr 06, 2011 1:09 am
Posts: 986
Location: Ecosse
Considering i've never done this before thought i'd ask here for advice from RB.


i'm running 3x 8spd compact and i want to get it down to 1x8


easiest solution?

Do i have to buy a chain guide?

Ring size? 32 or 34 or 36?

Does it have to be a specific 1x ring up front or can I safely use any ring?

Chain tension?


Arrrrrrrgggggghhhh!




jonny :s


Top
 Profile  
 
PostPosted: Tue Sep 03, 2013 11:16 am 
Retro Guru

Joined: Sun Aug 07, 2011 10:55 am
Posts: 2918
Location: Dorset
Cant help sorry :oops:

but this is something which I am about to do to my 'family rides' bike so will watch with interest the replies :)


Top
 Profile  
 
PostPosted: Tue Sep 03, 2013 11:23 am 
Gold Trader
Gold Trader
User avatar

Joined: Fri Aug 20, 2010 11:28 am
Posts: 5634
Location: Gorleston-on-sea (If there is a bright center to the universe this is place furthest from it
Hi Jonny

Chain guide really depends on if you are going over really rough stuff road/tow path/easy trails probably not anything rougher probably yes.

Ring size whatever you feel most comfortable with, what are you riding on the middle at the moment :?:

No it can be any ring on a 1x8 as you still have a tension from the rear mech, but single specific chainrings usually have a deeper profile on the teeth thus reducing chain skipping.

Chain tension should be the same as usual from your rear mech no difference :wink:

All of the above are only my thoughts and based on my experience so not gospel :facepalm:


Top
 Profile  
 
PostPosted: Tue Sep 03, 2013 11:26 am 
Retro Guru
User avatar

Joined: Wed Apr 06, 2011 1:09 am
Posts: 986
Location: Ecosse
widowmaker wrote:
Cant help sorry :oops:

but this is something which I am about to do to my 'family rides' bike so will watch with interest the replies :)


Yeah - this is for my "play-bike" or my
"if I have to push it just over that crest to get to ride down that fantastic trail then sobeit" bike.

Still want some gear range as it's not a strictly DH bike.

thinking 34/36t up front, with bashguard - big range on the back 8/9spd, i dunno.

I did read this but my lappy needs updating and i couldn't see the pics properly.
http://oldglorymtb.com/how-to-build-mou ... 1x10-1x11/

Don't wanna have to splash too much cash on this 'minimalist' set-up.


Top
 Profile  
 
PostPosted: Tue Sep 03, 2013 11:27 am 
Retro Guru
User avatar

Joined: Wed Apr 06, 2011 1:09 am
Posts: 986
Location: Ecosse
kermitgreenkona88 wrote:
Hi Jonny

Chain guide really depends on if you are going over really rough stuff road/tow path/easy trails probably not anything rougher probably yes.

Ring size whatever you feel most comfortable with, what are you riding on the middle at the moment :?:

No it can be any ring on a 1x8 as you still have a tension from the rear mech, but single specific chainrings usually have a deeper profile on the teeth thus reducing chain skipping.

Chain tension should be the same as usual from your rear mech no difference :wink:

All of the above are only my thoughts and based on my experience so not gospel :facepalm:



Sounding simpler already - thank you!


Top
 Profile  
 
PostPosted: Tue Sep 03, 2013 12:18 pm 
Retro Guru

Joined: Mon Jul 02, 2012 11:06 pm
Posts: 460
I run 1x9 over bumpy stuff. Fiddled with lots of bits and pieces (chain length, B screw, mech tension, DIY etc) to come up with a chain retention solution without a special device, but nothing worked as well as I wanted. Added a Superstar chain guide, and I've not lost a chain since :D. All of this with an unramped ring up front.

http://superstar.tibolts.co.uk/product_ ... cts_id=362

I found that the fear of losing my chain was really knocking my confidence when the going was fast and rough :(, so the chain guide is an essential for me :D.

If you're getting a bash for ..... er ..... bash reasons (rather than chain retention), you'll need a different kind of device to the one I use.

Regards


Top
 Profile  
 
PostPosted: Tue Sep 03, 2013 12:57 pm 
East Midlands Deputy AEC
East Midlands Deputy AEC
User avatar

Joined: Mon Aug 18, 2008 9:39 pm
Posts: 2027
Location: Ashby-de-la-Zouch
Same as Exeter Man above.
You'll need a chain guide, but I found 1 x 9 a really nice set-up.

Rob


Top
 Profile  
 
PostPosted: Tue Sep 03, 2013 1:23 pm 
Retro Guru

Joined: Mon Jul 02, 2012 11:06 pm
Posts: 460
One more thought on this. Is this for the Rocky Mountain in your sig? If it is, you are probably best to get a seat tube mounted guide, as a BB mounted mounted one may not play nicely with your existing setup.

Regards


Top
 Profile  
 
PostPosted: Tue Sep 03, 2013 1:32 pm 
Retro Guru
User avatar

Joined: Wed Apr 06, 2011 1:09 am
Posts: 986
Location: Ecosse
Exeter Man wrote:
One more thought on this. Is this for the Rocky Mountain in your sig? If it is, you are probably best to get a seat tube mounted guide, as a BB mounted mounted one may not play nicely with your existing setup.

Regards



Yeah, this will be for the Rocky Mountain however it has evolved since that picture and it's ready for the next evolutionary step.

I'll get a Quick photo up of it's current form.

I was considering a seat tube mount (replacing front mech?) i've seen the roller type DH ones which look secure?

Only real worry is conventional (triple middle) ring Vs. designated 1x Rings and the safety issue of this.




jonny


Top
 Profile  
 
PostPosted: Tue Sep 03, 2013 2:38 pm 
Retro Guru
User avatar

Joined: Tue Aug 07, 2007 12:22 pm
Posts: 2942
Location: Platsa, Messinias, Greece
Use a clutch type mech. and a full tooth chainring (or even better, one of the alternating thick/thin tooth ones) and you won't need a chain guide unless it's for DH type stuff.
Tooth count depends on where you ride, your cassette and wheel size. You don't need a bashring with a 1X setup, as the chain will protect the sprocket well enough.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 18 posts ]  Go to page 1, 2  Next

All times are UTC [ DST ]


Who is online

Users browsing this forum: Bing [Bot], Google [Bot], Google Adsense [Bot], grarea, Mahoney1978, NeilM, retrobikeguy, shedobits, Thias, tigern, vertical and 46 guests


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 post attachments in this forum

Search for:
Jump to:  

About Us

Follow Retrobike

Other cool stuff

All content © 2005-2015 Retrobike unless otherwise stated.
Cookies Policy.
bikedeals - the best bike deals in one place
FatCOGS - Fat Chance Owner's Group

Powered by phpBB® Forum Software © phpBB Group