Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Galleries NEW FAQ Contact About
It is currently Sun Jul 24, 2016 12:06 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  [ 7 posts ] 
Author Message
PostPosted: Tue Mar 17, 2015 9:18 pm 
Offline

Joined: Thu Dec 18, 2003 1:16 pm
Posts: 775
Location: muc
Hello,
i would be very grateful for your advice:

at the moment, i am using a rotor 3d p2max-24-mm-crankset on my climbing bike (with pf30-frame)
i just got a new bor r688 p2max-crankset with 30 mm-axle.

so, two cranksets are available.
one of the two cranksets is for use with the climbing-bike (which is much more in use), the other for the tt-bike.

which crankset would you combine with the climbing bike? the bor crankset is 33 gr. heavier, but its bb should be ca 60 gr. lighter.

below two links to the corresponding bottom brackets. which bottom-bracket is more reliable/unproblematic, in your opinion?

what would you recommend? thanks a lot, regards

http://r2-bike.com/BOR-Innenlager-PF30- ... pecialized
http://www.bike24.de/1.php?content=8;na ... 03;page=11

Attachment:
rotor 3d p2max.jpg


Attachment:
bor p2max.jpg

_________________
sorry vor mai bed englisch!


Top
   
PostPosted: Tue Mar 17, 2015 9:32 pm 
Offline
Resident Pro

Joined: Tue Mar 18, 2003 9:42 pm
Posts: 2253
the bor bb is definitely less problematiic. the rotor ones tend to squeak.


Top
   
PostPosted: Tue Mar 17, 2015 9:52 pm 
Offline

Joined: Wed Aug 20, 2008 2:12 pm
Posts: 192
Interesting comment: the bor bb is definitely less problematiic. the rotor ones tend to squeak.

I have 3 on different BB's and bikes including PF30 using a Praxis conversation and never heard a sound. Always like random comments like that.


Top
   
PostPosted: Tue Mar 17, 2015 10:01 pm 
Offline
Resident Pro

Joined: Tue Mar 18, 2003 9:42 pm
Posts: 2253
viewtopic.php?f=3&t=87004&start=15


Top
   
PostPosted: Wed Mar 18, 2015 8:32 am 
Offline

Joined: Thu Dec 18, 2003 1:16 pm
Posts: 775
Location: muc
thank you for now,

i am using rotor-bsa-bb for years without any problems.
the rotor 4624 in my pf30-climbing-bike did not sqeak until now as well (ca 1000-1500 km, with a lot of climbing).

what annoys me a little: if i keep the 24mm-rotor-crankset with my pf30-climbing-bike, i run the pf30-frame with a 24mm-crankset, and the bsa-frame (my tt-bike) with a 30mm-crankset (bor). both of course need an adapting bb, which is, in principle, no problem.

in terms of durability/stability the best solution in this case, or would you do it vice-versa? honestly, i expect the heavy, solid-looking rotor 4624-bb being the more-reliable solution than the light bor-bb, but maybe i am wrong.

any experiences with the bor-bottom-bracket would be really interesting.

thank you, regards,

_________________
sorry vor mai bed englisch!


Top
   
PostPosted: Wed Mar 18, 2015 1:39 pm 
Offline
Resident Pro

Joined: Tue Mar 18, 2003 9:42 pm
Posts: 2253
Bor bbs are quiet. Tune uses same or similar. A guy i ride with has the rotor and it squeaks with every pedal stroke. Never had any problems with the bor.


Top
   
PostPosted: Wed Mar 18, 2015 7:52 pm 
Offline

Joined: Thu Dec 18, 2003 1:16 pm
Posts: 775
Location: muc
mike, thank you for the info. sounds good. i, meanwhile, heard of different users, that the bor-bb is unproblematique. will ask my dealer for advice and might try it.
regards,

_________________
sorry vor mai bed englisch!


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 7 posts ] 

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Need options on climbing bike

[ Go to page: 1 2 ]

in Road

addictR1

20

1476

Mon Oct 05, 2015 6:40 pm

NYCPrynne View the latest post

There are no new unread posts for this topic. Intermittent rattle when climbing

[ Go to page: 1 2 ]

in Road

mogwaiboi

18

570

Sun Jan 17, 2016 1:04 am

wingguy View the latest post

There are no new unread posts for this topic. 165mm cranksets for hill climbing

in Road

fixiedave

12

1137

Fri Nov 06, 2015 7:16 pm

DCnoJ View the latest post

There are no new unread posts for this topic. Di2 shifter hacks, for climbing and sprinting

in Road

motorapido

1

238

Thu Jul 14, 2016 7:55 pm

2old4this View the latest post

There are no new unread posts for this topic. Help on 9 speed cassette upgrade for easier climbing?

in Road

stockae92

12

369

Tue Oct 06, 2015 8:08 pm

Calnago View the latest post


All times are UTC+01:00


Who is online

Users browsing this forum: Google Adsense [Bot] 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