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Discussion in 'Hacks' started by TurTal, Dec 31, 2017.
Theres no reason for you to worry about anything mtrdrms
I've got ya covered
After testing different master cylinders from MAGURA here's my recommendation
The 10.5 has the easiest pull but it can only fully engage the clutch when the star adjuster is set to maximum
This leaves no adjustment as the clutch and clutch arm wears
If everything is new and you don't mind adjusting your shifting pattern and want a really easy pull than the 10.5 master is fine
For the kit I am recommending the 12mm axial master cylinder
It fully engages at the lowest setting and has plenty of adjustment as the clutch and clutch arm wear...it has a slightly firmer feel compared to the 10.5
At this time I'm not going to add my modified clutch arm in the kit
The 5 participating members names have been submitted and when Jeff lets me know when the kits are ready I will send the codes
I will continue to improve upon it until I can make it the easiest pulling clutch on the market
The first 5 users are receiving a discount to compensate for their time so that they can be a part of the continuing development
Their input will be crucial so that I can improve the product where the end user feels it's necessary
Here is the new 12mm TurTal/Magura clutch kit installed
The basic routing of the cable and the placement of the slave and TurTal gizmo
The TurTal gizmo and how it worx
The little gizmo is simple but it's very effective at what it does
It has the ability to flex in any direction to alleviate any chance of binding while maintaining a straight pull
It is easy to use once the clutch arm screw is in place allowing for quick installation and removal
The screw is a specific length so that it can be installed without removing the clutch arm
The nut has a hex threaded insert to keep it in place
Within the nut is a tiny O-ring....it serves 3 purposes
It allows the end user to tighten the nut by hand until it bottoms out....this keeps you from over tightening the nut and binding the rod....this also prevents the piston/seal from premature wear on one side of the bore from being cocked in the bore...this allows for long seal life and no premature leaking of the seal.....set the screw and you're done
It allows a certain amount of cushion as the rod operates back and forth
It also reduces the intrusion of contaminants into the threads such as grit...grime...water...etc.
The nut itself also serves as a handle to aid in reverse bleeding of the system
Fore and Aft Adjustments are accomplished via the slave bolt
Like a mouse trap the gizmo is basic...gets the job done and will remain trouble free for its lifetime
Awesome! It just keeps getting better. Now when can I buy one...?
Jeff told me that Magura finished building the gizmo and that he was pretty sure they had recieved it at the U.S. location 2day
He did not give a date yet
I think they were shooting for mid/late February
Jeff wont be back till the 15th or 16th
I'll call him when he returns
Ok just got off the phone with Jeff @ Magura USA
The latest projected date is that the kits will be ready by spring
I know I know that wasn't the original time line
Here's the deal
When I designed the gizmo I wanted it to be simple and 100% plug-n-play for the end user
I originally cut a slot in the cap with the hole so you could just slip the rod end into the cap nut without disassembly of the slave cylinder
As I played around with it I really didn't think the cap could hold up to the constant pulling with that much material compromised
I didn't do any long term testing to validate whether it would or wouldn't pop the end off I just went with my gut on it and felt uneasy about it
Since Uralista folks like to tinker a bit I thought the best course of action was to just let them unscrew the rod and slip it through the nut then screw it back in the slave and wa la you're ready to go
Looking back on it that's not really 100% plug-n-play...98% maybe...but still....no
What I didn't factor in was Warranty and How Magura would handle that warranty if people were pulling the slave apart
So Magura Germany has cut a slot into the cap so that now all you have to do is slip the rod in and go
I told Jeff they can improve on the gizmo however they see fit...after all it is their name and reputation on the finished product...I am merely a humble servant
They are testing that cap as we speak....I already did the cycle and pull strength of my original cap upon submission
It's taking Magura Germany a little longer than we anticipated but I'm confident they want to make sure it works properly and is reliable
P.S. There are a couple of TurTal enhancements to the design that I will post after the original kit comes out
They will serve to assist with overall functionality
Given the similarity of the clutch operation between Ural and BMW, would this fit an airhead BMW?
Magura makes a barrel fitting for the rod
I don't see a problem getting it to fit
TurTal, any update?
No word yet
I will call 1st thing Monday morning
Spoke with Jeff this morning he told me the 5 kits should be ready by the end of this month...(June)
Jeff will give me a call in a couple of weeks and I'll PM the codes to the five
@TurTal - Please add my User Name to the pool that will be eligible to receive the monthly secret TurTal discount code. I'm interested in the 12mm axial master cylinder, as you recommend above. Thanks.
Please add me also. Any idea on a final price??