K2 / Proflex Riders Group

General => Tech Forum => Topic started by: timber 2114 on October 03, 2015, 10:03:17 am

Title: hs33 to shimano
Post by: timber 2114 on October 03, 2015, 10:03:17 am

hi i have a 657 expert series with magura hs33 brakes on, the levers are in poor condition . but i have a new pair of shimano lx dual control  hydraulic levers , does any one know if you can fit the shimano levers to hs33 calipers thanks dave.

Title: Re: hs33 to shimano
Post by: Colin on October 05, 2015, 03:29:37 am

I don't know if you can do that, but I always found Magura Tech support to be very good in the past (>10 years ago!) so maybe give them a call?

All I do know is that both Magura and Shimano use mineral oil as brake fluid.

Col.

Title: Re: hs33 to shimano
Post by: timber 2114 on October 05, 2015, 03:06:09 pm

ok col thanks for your quick response i will see if i can contact magura and see what they say.

Title: Re: hs33 to shimano
Post by: fyrstormer on October 05, 2015, 04:40:49 pm

As I recall, Magura brakes use mineral oil and Shimano brakes use DOT3 brake fluid. The seals are probably not chemically compatible between the two, though there is a slim possibility they used something like Viton which is immune to almost any solvent.

Title: Re: hs33 to shimano
Post by: Colin on October 06, 2015, 05:52:57 am

No, Fyrestormer, I'm VERY confident that Shimano use Mineral Oil. (albeit their own propriety one).

However I also understand/believe the hype that Magura and Shimano Mineral Oils are NOT compatible and should not be mixed, so Dave may have a compatibility issue as Magura Oil might eat the Shimano seals and vice versa.

Col.

Title: Re: hs33 to shimano
Post by: fyrstormer on October 06, 2015, 11:32:05 pm

Sorry, I was thinking of Hope brakes. My bad.

Title: Re: hs33 to shimano
Post by: w2zero on October 23, 2015, 12:39:50 pm

I've used magura calipers with Kooka Racha hydro levers 5 years with no problem.

Title: Re: hs33 to shimano
Post by: timber 2114 on October 23, 2015, 01:12:00 pm

hi w2zero ive been told one users hi pressure and the other low pressure ,  maybe i will just do it and let every one no how it works out cheers dave.

Title: Re: hs33 to shimano
Post by: Colin on October 26, 2015, 04:23:09 am

Quote from: timber 2114 on October 23, 2015, 01:12:00 pm

.................................... maybe i will just do it and let every one no how it works out cheers dave.

Of course, if the seals explode in use on a massive descent, we may not hear from you again..................<GRIN>.......only kidding, Good Luck!

Title: Re: hs33 to shimano
Post by: timber 2114 on October 27, 2015, 10:50:29 am

yes col, you have a point there maybe i should just get some new hs33 levers of ebay and stay in one piece cheers dave