Retrobike Forum Index

It is currently Tue Dec 06, 2016 9:23 am

* Login   * Register * Search  * FAQ



Post new topic Reply to topic  [ 15 posts ]  Go to page Previous  1, 2
Author Message
PostPosted: Wed Jul 17, 2013 1:47 pm 
Retro Guru
User avatar

Joined: Sat Apr 02, 2011 11:16 am
Posts: 799
Location: Camden, London
looking at that you can see given the spider why the inner ring cannot get much smaller, smaller rings need smaller spiders, ie lower BCD, I guess this is why the compact triples are 94/58 vs standard 110/74 when the sprockets all got smaller and hence chainrings could become smaller


Top
 Profile  
 
PostPosted: Wed Jul 17, 2013 1:56 pm 
Gold Trader / PoTM Winner / RB Rider
Gold Trader / PoTM Winner / RB Rider
User avatar

Joined: Tue Feb 26, 2013 6:26 pm
Posts: 16929
Location: 54 Festive Road Winchcombe GLOUCS Yarp...
Think I will just go with a 39 ring first and see how that feels. Didn't have to get off last night but felt like too much pressure on the old knees compared to granny on the Marin. Just bought the road bike and want to be comfortable with it. At present not much quicker than my Marin on slicks but only been out a couple of times.

Thanks to all. I really do appreciate the generousnessness of those with the knowledge to help. Thank you for taking the time to respond.


Top
 Profile  
 
PostPosted: Wed Jul 17, 2013 3:54 pm 
rBoTM Winner
rBoTM Winner
User avatar

Joined: Wed Dec 12, 2012 10:18 pm
Posts: 2373
Location: California
The History Man wrote:
Don't want to faff around with rear as don't have the tools as yet. So would changing 42 to 39 make an appreciable difference?



As has already been noted changing the 42 to 39 would be noticeably easier, not sure why you would need to change the whole crankset to achieve this? but that 600 set is nice and very much like the Dura-Ace version. I would think that you could snag it for £30 or so since they are common.


Last edited by lewisfoto on Wed Jul 17, 2013 4:12 pm, edited 1 time in total.

Top
 Profile  
 
PostPosted: Wed Jul 17, 2013 4:09 pm 
Gold Trader / PoTM Winner / RB Rider
Gold Trader / PoTM Winner / RB Rider
User avatar

Joined: Tue Feb 26, 2013 6:26 pm
Posts: 16929
Location: 54 Festive Road Winchcombe GLOUCS Yarp...
Hmmmm. He's offered it for £26 inc. will go with just a ring though as if it ain't broke etc.


Top
 Profile  
 
PostPosted: Wed Jul 17, 2013 7:31 pm 
Gold Trader / PoTM Winner / RB Rider
Gold Trader / PoTM Winner / RB Rider
User avatar

Joined: Tue Feb 26, 2013 6:26 pm
Posts: 16929
Location: 54 Festive Road Winchcombe GLOUCS Yarp...
Bought an as new 39 for £11. Thanks to all as always.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 15 posts ]  Go to page Previous  1, 2

All times are UTC [ DST ]


Who is online

Users browsing this forum: Excel and 29 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