8-speed, 12-34 cassette

[J Schwartz]

Greetings, 

Anyone know if there's an available 12-34, 8-speed cassette out there besides the Sunrace?

Not that I'm opposed to Sunrace.  Just curious if there are other options.  Looks like Shimano/Sram don't have that in their current lineup.

thank you

JS

[Steven Sweedler]

There is a 13-34 7 speed cassette from IRD, I have had it on my touring bike for the last year.  Steve

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Steven Sweedler
Plymouth, New Hampshire

[Pam Bikes]

I've been buying the 11-32 Shimano and SRAM.  I think the gearing is slightly better on the SRAM.  I like an 11.  32 seems to be sufficient.   Look at the gearing calculators on Sheldon Brown.com

[dougP]

JS:

Sunrace has a 12-34 8 speed.  I've used them & they are fine.  With 700c wheels & a 24-34-44 triple I have all the gear range I need.  However, if you have 26" wheels, an 11 may be better.  My wife has 26" wheels & uses her 46 x 11 top gear.  We are both recreational riders. 

I've used cassettes with a 32 big cog, & found the change from the 28 to be not quite enough.  With the 34, I like that last jump from 28 to 34 as it feels like I've really gained something.

dougP

[Joe Bernard]

I have a SunRace 11-speed on my custom. I wouldn't worry about that company, it's good stuff. And generally available!

Joe Bernard

[Garth]

Sunarace is the only mfr. of the 12-34 8-sp using 12/14/16/18/21/24/28/34 cogs. Microshift has a 12-32 but uses a very wonky 12/13/15/18/21/24/28/32. A 15 to 18 jump is too much for my riding preference with 24/36/44 rings. It's like a gear and a half jump where you don't want one.

What I like about Sunrace CSM double-digit mtb cassettes is that they're held together by a removable torx pin, so if need be I can by another non-exact cassette with the cogs I ride most, the 14/16/18/21/24 and use the previous 28 and 32, or if it the other had a 34 I'd be okay with that.

This gear calculator is very easy to use and customize even if a specific cassette isn't listed. Use you mouse and arrange things as you like.

http://www.gear-calculator.com/

Basically though, cog selection in mfr. cassettes sucks ! I have no use for 11, 12 or even 13 for that matter. I currently have a Sunrace 12-36 9-sp that I don't use either the 12 or 36 cogs, so I basically use it as a narrow spaced 7-speed. The 36 is my "spoke guard" !  I could just as easily get by with 15/17/20/24/28/32 cogs if anyone offered it. Six cog SS/trials cassette hubs are made by Hadley, Hope and Onyx. If I had it my way everyone would choose their cassette cogs that had a mind to, the weight weenies need not apply because they'll put up with anything as long as the digits read like tea leaves.

[Ray Varella]

I have a couple of those 12-34 8 speed cassettes in use, one with a Suntour XC Pro rear mech and one with a first generation Deore XT, both shifted in friction,  they both shift so smooth and quietly I find myself looking down to see if they changed cogs. 
 For $20 they are a bargain. If the range works for you, I don’t see how you can go wrong. 

Hey Garth, you can get an Ultegra 13T to replace the 12, I’ve done that too. 

Unfortunately TA discontinued their Podium line of cassettes. 

Rivendell is working on a 7 speed unit that looks promising.  

Ray

[Corwin]

Hi -

While we're at it, I've been looking for a 12-40 9 speed cassette to go on a 1x setup for my new custom (replacing the one stolen earlier this year).

I would probably go with an 8 speed cassette except that Shimano 8 speed bar end shifters have become rather hard to find.

Thanks in advance,

Corwin

[Greg Murphy]

IRD has a 12-34 but pricing is like $80. I try to just stick with Shimano or SRAM when I can. 

To view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/39d23172-7e32-49a3-a75a-9f1cbd27fd9bn%40googlegroups.com.

[J Schwartz]

Thanks for all the input

I can't really respond from my phone so had to wait until I'm on a laptop.

Yes, I'm familiar with the other sized options , other gearing options, Sheldon's calculator, etc.  Specifically looking for a 12-34 cassette in 8-speed.

and...it looks like Sunrace is the best option given the price of the IRD.

The gearing is only slightly different with the IRD being maybe a little more preferable to the roadish rider.

12-13-15-18-21-24-28-34, [IRD]

&

12-14-16-18-21-24-28-34, [Sunrace]

both coated steel.

There are occasionally 12-34 8-speed XT cassettes that pop up on eBay in various states of usability given that group is 20 years old.

Plenty of expensive 12-34 8-speed XTR cassettes too...but I'm not interested in titanium nor the prices.

Really surprised this isn't a more common and readily avail. cassette size. 

thanks

JS