Question on setting up the PMW UDH dropout with their fixture

General Discussion
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Hi, I’m hopping to get some help with setting up the PMW UDH/flatmount integrated dropout (DR2075) using the PMW fixutre the offer (FT1162). I have the dropout set up in an indexer dummy axle and the 0 offset bushing. When everything is mounted up I can tell the flats on the bottom of the dropout are not in plane. Looking at the description on the webpage they specify that the chainstay center must be 3.5mm above axle center which I can wrap my head around but they also state " * Put a straight edge on the flat and position it 13 mm +/- 3 mm below bottom bracket center". That is the part I’m having a hard time wrapping my head around when it comes to fixturing this all up. When everything is set up in the indexer dummy I can tell the back of the hoods don’t like up and the right side UDH side bottom is angle up 10-15 deg or so. Any insight on this?

I tried to call PMW and no answer and sent a message off their website but it’s Friday evening so doubtful anyone will reply. Any insight would be great. Thanks!!

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If you put a UDH in the dropout instead of the PMW part can you get the flats to align?

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Yeah it’s much closer to flat! That’s the confusing part to me.

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Well turns out I can’t read or the instructions are still a little bit confusing. I installed the dropouts with this metal UDH fixture on a non indexing spacer dummy axle and phased the bottom flats. Then ran a ruler across down to the BB where I set it up 13mm below. Here’s a pic. Anyone know what the 13mm below part is all about? Specifically for Transmission derailleurs?

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Maybe a clearer explanation: the dropout flat should be clocked parallel with the virtual chainstay plane (axle center to BB center).

This is the correct way of clocking dropouts.

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That makes perfect sense, thank you. I looked their pdf over and have clocked their other dropout/hangers the various other ways they show but just didn’t see where that 13mm figure was coming from but it’s clear now.

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@Spedersen yes, there’s no one in the shop on a Friday night :slight_smile: I asked Luis to answer your questions via email. Please let me know if we need to send the response again.

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Here’s my little IG reel… on how to index the round UDH dropout and the tools needed:

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Thanks @Coco_PMW for the reply. Yeah I totally figured you guys were on your way out on Friday. I kept the fixture in there and just swapped to a non indexer dummy axle and was still able to clock them them using the wide flat you get on the bottom of the FT1162. Sure seemed to do the same thing the round fixture (non Bobi) one does?