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This is all very cool. Can’t wait to hear what you think of its performance/whatever it’s supposed to do?
With the chain device stack height…
edit - I just seen you other post that explains it’s at the iscg mounting points. I have a cascade chain guide that I haven’t installed yet, I’ll check the dimensions.
TotalShanner
@Dammit
I thought I'd put this in a separate thread as it may be of interest to some people who'd have no interest in my Yalla.
Originally I built my downhill bike with a complete SRAM group - which I took to Queenstown in NZ and got to know a little. I had originally intended on building it with the Centre Hub, but timelines didn't workout.
Here's where we started:
Things came apart easily, this workbox top is handy:
Mounting the ring with the printed text facing outward meant that the chainring bolts bottomed out before clamping, as there is a relief milled into the face of the chainring around each chainring bolt hole:
I reversed the ring, which as there was no relief around hole on this face resolved the issue:
My centre hub shipped with three spacers, the purpose of which being to space the ring correctly - non-boost, boost, super boost etc are all catered for by dint of the ring floating on the splines of the hub and being able to be secured in place by two bolts that tighten it down when in the correct position.
Sadly all three of my spacers had been mangled in shipping, so I made my own, in a rather jaunty green PLA as that was what was in the printer:
This wasn't the correct spacing, but my cat had taken the correct one and hidden it, so I used this whilst I printed another 6mm offset spacer so I could get on with things.
Stock SRAM was hex-head, WRP was PH2:
Not going to work:
Better:
The SRAM ring has this surface that butts up against the spacer on the axle:
Whereas when equipped with the Centre Hub it's resting on the heads of the three mounting screws, which I'm not entirely happy about but it's probably fine:
Snugged up the Centre Hub immediately jammed against my MRP chain/bash guide:
Printer pinged:
This was from a file that Mic (owner of WRP) had sent me, rather than the green spacer which I'd drawn up:
All torqued up, I need an upper chain guide (mandated by WRP) that has a stack height when installed of 4mm or less:
With the cassette zip-tied to test function:
https://www.youtube.com/watch?v=8j8XeZNpIrU