Dura-ace cassette question

pickle
Posts: 362
Joined: Sun Mar 29, 2009 2:56 am
Location: Perth

Dura-ace cassette question

Postby pickle » Sun Oct 18, 2009 9:28 pm

I need to get a new cassette for my dura-ace gruppo. I have 7800s at the moment. What I'm wondering is if the 7900 cassettes would be compatible with the rest of the 7800 gruppo? Can't seem to find 7800 online anywhere (well pbk have them but none in stock)

Cheers :D
Data not found... brain not found more like it
Image

User avatar
toolonglegs
Posts: 15451
Joined: Fri Jun 29, 2007 7:49 pm
Location: Somewhere with padded walls and really big hills!

Re: Dura-ace cassette question

Postby toolonglegs » Sun Oct 18, 2009 11:23 pm

I run DuraAce groups but can't be bothered wasting the money on the cassettes...they are too expensive and chop out too quick...I just run Ultegra or even 105.

lukas
Posts: 864
Joined: Tue Jul 24, 2007 4:32 pm
Location: Hurstville, Sydney

Re: Dura-ace cassette question

Postby lukas » Sun Oct 18, 2009 11:43 pm

toolonglegs wrote:I run DuraAce groups but can't be bothered wasting the money on the cassettes...they are too expensive and chop out too quick...I just run Ultegra or even 105.


+1. Ultegra, or even Sram (force level, not sure of the number) cassettes are my pick.

But to answer your question, yes I believe they are compatible.
Cervelo R3
Canyon Ultimate AL
Image

User avatar
CoffsGal
Posts: 955
Joined: Mon Sep 22, 2008 8:35 pm
Location: Mid North Coast NSW

Re: Dura-ace cassette question

Postby CoffsGal » Mon Oct 19, 2009 7:52 am

Here is a link to the DA interchangeability chart, which indicates that you can use the 7900 cassette with a 7801 RD

Emma

User avatar
jaykay
Posts: 521
Joined: Fri Jun 12, 2009 11:01 pm
Location: Hills

Re: Dura-ace cassette question

Postby jaykay » Mon Oct 19, 2009 12:53 pm

I am running DA 7800 with a SRAM Rival Cassette and it is compatible just not quite as good as a ultegra cassette for shifting speed and accuracy.
On another note chainreaction have DA 7800 cassettes for $170. http://www.chainreactioncycles.com/Models.aspx?ModelID=28440

Slightly off topic. How many km's could I expect to get from a DA cassette compared to a ultegra? I am keen to try a 12-27 and the only one I can find so far is a DA on sale at CR, just not sure if it is worth the money - even on sale - if I will only get a few thousand kms from it.

cheers
james
"If you get rich off this stuff, just take care of my family. I don't want my kids to have to go to college."
GT Sport

pickle
Posts: 362
Joined: Sun Mar 29, 2009 2:56 am
Location: Perth

Re: Dura-ace cassette question

Postby pickle » Mon Oct 19, 2009 1:23 pm

Wow thanks for the chart emma. Makes everything a lot clearer :)

Thanks for the crc link too. Don't know how I missed that one. Thats a pretty good price too.
Data not found... brain not found more like it
Image

User avatar
ni78ck
Posts: 2421
Joined: Mon Aug 11, 2008 5:15 pm
Location: Sydney
Contact:

Re: Dura-ace cassette question

Postby ni78ck » Mon Oct 19, 2009 2:40 pm

sorry to hi-jack your thread, but is it an idea to stock pile such consumebles? how many kms should a cassette last?
Cervelo R5
Cervelo S5 VWD - dura ace Di2

User avatar
toolonglegs
Posts: 15451
Joined: Fri Jun 29, 2007 7:49 pm
Location: Somewhere with padded walls and really big hills!

Re: Dura-ace cassette question

Postby toolonglegs » Mon Oct 19, 2009 5:55 pm

Depends how you look after your chain and cassette...I get 10,000km plus out of chain and cassette.Some people change chains midway.DuraAce cassettes have the 3 biggest cogs in Ti...it dosen't last as long and is were all the extra cost comes from.Unless you are Contador you won't notice 50 grams at the hub...but you will save some pennies.

User avatar
jaykay
Posts: 521
Joined: Fri Jun 12, 2009 11:01 pm
Location: Hills

Re: Dura-ace cassette question

Postby jaykay » Mon Oct 19, 2009 8:12 pm

Thanks TLL, it sounds like even with the discount on the DA Cassette it is not worth it as I wouldnt even notice if I put on a kg :oops: :lol:
"If you get rich off this stuff, just take care of my family. I don't want my kids to have to go to college."
GT Sport

User avatar
brycerider
Posts: 166
Joined: Thu Aug 20, 2009 8:59 pm

Re: Dura-ace cassette question

Postby brycerider » Mon Oct 19, 2009 8:37 pm

ni78ck wrote:sorry to hi-jack your thread, but is it an idea to stock pile such consumebles? how many kms should a cassette last?


I picked up 5 7800 11-23's for $US99 each off competitive cyclist - worked out at $125 aussie landed :mrgreen: I am currently testing a SRAM PG 1070 which being made of steel (and slightly lighter than Ultegra) should wear quite well. I used to use Ultegra until Shimano jacked up the prices recently. The predecessor the SRAM OG 1070 was a bit crappy by all reports.

As for how long they last - I figure around 7,000km or so if you are changing your chains as they wear. Depends on where you ride and how much wet weather you get - more = less chain/cassette life.

User avatar
ni78ck
Posts: 2421
Joined: Mon Aug 11, 2008 5:15 pm
Location: Sydney
Contact:

Re: Dura-ace cassette question

Postby ni78ck » Mon Oct 19, 2009 9:18 pm

brycerider wrote:
ni78ck wrote:sorry to hi-jack your thread, but is it an idea to stock pile such consumebles? how many kms should a cassette last?


I picked up 5 7800 11-23's for $US99 each off competitive cyclist - worked out at $125 aussie landed :mrgreen: I am currently testing a SRAM PG 1070 which being made of steel (and slightly lighter than Ultegra) should wear quite well. I used to use Ultegra until Shimano jacked up the prices recently. The predecessor the SRAM OG 1070 was a bit crappy by all reports.

As for how long they last - I figure around 7,000km or so if you are changing your chains as they wear. Depends on where you ride and how much wet weather you get - more = less chain/cassette life.


thanks for the response! if you buy 5 cassettes, thats 35,000 kms of riding :shock:
Cervelo R5
Cervelo S5 VWD - dura ace Di2

User avatar
brycerider
Posts: 166
Joined: Thu Aug 20, 2009 8:59 pm

Re: Dura-ace cassette question

Postby brycerider » Mon Oct 19, 2009 9:24 pm

True but it beats paying $200 each later on

Who is online

Users browsing this forum: holywater, MattyK, Rorschach, Sharkey