Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Galleries NEW FAQ Contact About Impressum
It is currently Fri Dec 09, 2016 8:43 pm
Recently the board software has been updated and there are some known bugs/failures:
- Avatars are currently not being displayed ✔ FIXED
- Tapatalk connection is currently broken ✔ FIXED
- Avatars cannot be uploaded ✔ FIXED

Please note that we will soon do some changes in WW board template design in case to get a fully mobile/desktop responsiveness board!
If you find more errors please post it here: http://weightweenies.starbike.com/forum/viewtopic.php?f=7&t=139062


All times are UTC+01:00





Post new topic  Reply to topic  [ 4 posts ] 
Author Message
 Post subject: 12-30 cassette fitment
PostPosted: Thu Aug 16, 2012 4:59 pm 
Offline

Joined: Thu Dec 22, 2011 12:39 pm
Posts: 492
Location: DC
I'm slowly gearing up to ride my first Granfondo (Jeremiah Bishop's Alpine Loop) and I'd like to make any changes to my bike early on to avoid any issues during the ride. The ride will be about 100 miles and have about 11,000 feel of climbing, some of which will take place on compacted dirt roads and etc. Since I'm not a pure climber at 167lbs I'd like to adjust my gearing in order to handle the long and sometimes steep climbs for the ride. FYI I am running a Sram Force drivetrain with the new YAW Red front derailleur. The shifting is perfect. In the front I am running the Rotor Q Rings which I really like for climbing and will be sticking with those. They also help my knee pain. In the back I am running a Shimano 12-27 cassette. Although its fine for local hills, the long and steep at times climbs would be a bit easier with some taller gears on the top range. I know that officially the sram force RD will support up to a 28t sprocket. I have been eyeing the new Ultegra 12-30 cassette which seems like an ideal choice for the ride. The Apex 32t cassette will be a stretch but has anyone run the 12-30t cassette or the Tiagra equivalent on a Sram RD without going to a long cage Apex RD? Technically, the B screw on the RD could be adjusted to clear the RD pulley with the large cog. I've read of guys running the cassette with Ultegra RD which officially support up to a 27t cassettes. Any thoughts are appreciated :thumbup:

_________________
My Bikes:
BMC SLR01 TeamMachine
Cannondale CAAD8


Top
   
PostPosted: Thu Aug 16, 2012 6:43 pm 
Offline

Joined: Fri Oct 28, 2011 3:25 am
Posts: 1348
Location: United Kingdom of Great Britain and Northern Ireland
Don't worry, on the day you won't be the only one that didn't fit a triple.


Top
   
Posted: Thu Aug 16, 2012 6:43 pm 


Top
   
 
PostPosted: Thu Aug 16, 2012 6:59 pm 
Offline

Joined: Tue Apr 12, 2011 8:08 am
Posts: 2292
Location: Pedal Square
I'm about to try a Tiagra 12-30 cassette on my training wheels (DA 7900 drivetrain). If you're hard pressed for clearance on the bottom gear seems to be to swap in a 10 tooth upper pulley.

_________________
Bikes: Raw Ti, 650b flatbar CX


Top
   
PostPosted: Thu Aug 16, 2012 8:07 pm 
Offline

Joined: Tue Nov 11, 2003 9:47 pm
Posts: 2196
Location: Santa Cruz, California, USA
A 7900 RD ought to clear a 30t cog. But in the end it depends on your frame's derailleur hanger.

I can get a 2012 Red RD to shift on to a 30t cog without even touching the B screw. But you have to try it on your bike to see if it works. If it doesn't and screwing the B screw in doesn't help, then you'll need a different derailleur.


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 4 posts ] 

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. cipollini BOND SRM fitment

in Road

jobispot

6

999

Thu Jul 21, 2016 2:13 pm

DartanianX View the latest post

There are no new unread posts for this topic. New Campag 11 Cassette

in Road

Valbrona

5

465

Wed Sep 28, 2016 12:42 pm

benzebub View the latest post

There are no new unread posts for this topic. Will a RD6800SS fit a 30T cassette?

in Road

zalle

3

198

Thu Dec 08, 2016 10:11 pm

zalle View the latest post

There are no new unread posts for this topic. Help me choose a cassette

in Road

zalle

10

1079

Thu Dec 01, 2016 7:25 am

mpulsiv View the latest post

There are no new unread posts for this topic. Campy cassette on Di2 9070

in Road

coppercook62

11

974

Thu Jun 02, 2016 1:00 pm

micro553 View the latest post


All times are UTC+01:00


Who is online

Users browsing this forum: Baidu [Spider], incredibleting, jmechy, maquisard, Nejmann, sovereign, sun and 21 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:  
Powered by phpBB® Forum Software © phpBB Limited