Transmission - Mechanical Edition

6/25/2024 5:15am
sethimus wrote:

you are supposed to ride both transmission chain and cassette to the ground, at least thats what they tell the mechanics. 

Fascinating.  Thanks for sharing.  Any experience with durability compared to GX and X01, especially on mid powered e-bikes?  Transmission has been out long enough that there should be some anecdotal evidence by now.

1
Thecolonel
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7/5/2024 8:34am
kroe wrote:
SRAM indicates it does not work, my angle grinder believes otherwise. Grinding non-critical centering material off a UDH dropout provided required clearance between the smallest cog...

SRAM indicates it does not work, my angle grinder believes otherwise. Grinding non-critical centering material off a UDH dropout provided required clearance between the smallest cog and dropout.  

Shifts great - especially improved shifting to harder gears and under load.

X0 (XS-1295) cassette, XX t-type chain, XX1 Eagle mechanical shifter and derailleur.

 


Well, 9 days of bike park riding appears to have killed my fancy XO Transmission derailleur. Scratch all that stuff I said about reliability, I killed this one too! Thanks to KROE I'm going to try this Luddite Transmission idea. I already have the T-type parts and an XO shifter and found an XO derailleur on sale and I really like the idea of ditching the batteries and bluetooth. I also ordered the B bolt upgrade for my other bikes with GX drivetrains too so thanks for that idea.

Vital forums FTW

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NicoZesty96
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portogruaro, VE IT
7/10/2024 4:01am
Primoz wrote:

What's the benefit of running this over a standard Eagle cassette and chain?

boozed wrote:

Better steps between the four largest sprockets...

I'd like to understand what the modification to the UDH does in function and why it's necessary.

Primoz wrote:
But Garbaruk achieves that and improves on it (it has a 37T 3rd ring, making the steps even more steady than either the 52T Eagle or...

But Garbaruk achieves that and improves on it (it has a 37T 3rd ring, making the steps even more steady than either the 52T Eagle or the Transmission cassette). And it's cheaper and lighter than the X01 Eagle cassette. Granted, the shifting performance is not AS good as Sram's and you really must not rush it (shift one gear at a time), but it works well enough to not be an issue.

The modification enables mounting the wheel with the Transmission cassette as it is moved outwards compared to Eagle cassettes (closer to the frame effectively). Using the Transmission derailleur doesn't cause an issue as it has enough clearance from the get-go.

Why one shift at the time only with Garbaruk?

Primoz
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7/10/2024 4:14am

It gets overwhelmed and pulling multiple shifts when under (some) power the chain can skip and be thrown down towards the small cogs. It doesn't mesh as nicely when doing multiple shifts.

A 10-50T X01 cassette didn't have this problem if I remember correctly, but on the other hand we know Transmission spaces out shifts quite a bit to do this same delay I mentioned is required by the Garbaruk cassette. Obviously I'm running a cable actuated (X01) derailleur, which means I can pull three or four shifts with one movement of the thumb. Running an eBike single click shifter would help this for example.

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NicoZesty96
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7/10/2024 4:23am
Primoz wrote:
It gets overwhelmed and pulling multiple shifts when under (some) power the chain can skip and be thrown down towards the small cogs. It doesn't mesh...

It gets overwhelmed and pulling multiple shifts when under (some) power the chain can skip and be thrown down towards the small cogs. It doesn't mesh as nicely when doing multiple shifts.

A 10-50T X01 cassette didn't have this problem if I remember correctly, but on the other hand we know Transmission spaces out shifts quite a bit to do this same delay I mentioned is required by the Garbaruk cassette. Obviously I'm running a cable actuated (X01) derailleur, which means I can pull three or four shifts with one movement of the thumb. Running an eBike single click shifter would help this for example.

I wanted to get that but I’ll stick with everything eagle and shimano cassette for the proper cassette spacing then 

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Primoz
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7/10/2024 4:28am

Um... Garbaruk has an xd and a microspline version of the cassette. And they said (I asked) they are not interchangeable as the spacings are different between the two. Therefore "sticking to everything eagle and shimano cassette" will in fact not give you proper cassette spacing.

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NicoZesty96
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7/10/2024 12:02pm
Primoz wrote:
Um... Garbaruk has an xd and a microspline version of the cassette. And they said (I asked) they are not interchangeable as the spacings are different...

Um... Garbaruk has an xd and a microspline version of the cassette. And they said (I asked) they are not interchangeable as the spacings are different between the two. Therefore "sticking to everything eagle and shimano cassette" will in fact not give you proper cassette spacing.

Interesting, visually they look the same

i can say that eagle cable drivetrain with shimano cassette works great

no spacing problem or anything 

 

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