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Discussion Starter · #1 ·
This is a longshot, but...

I'm one of your few Australian readers. Supply chains to this side of the planet are pretty shot. While I'd welcome tips for purchasing that aren't going to take 6 months to arrive, I'd be happy to hear of any hacks.

I've been having trouble shifting my front derailleur and I realised today that the lever support for my Shimano ST-R7025 is missing. It's a plastic part (part number Y63X80010) that sits on the inside of the outer lever. You can see it in this exploded view and here's one from a Taiwanese seller (look at the delivery time!). I have looked at US sellers but, quite frankly, shipping charges from there are extortionate and I won't get it any faster. Shimano Australia is out of stock and I've rung 20 bike shops today hoping that someone has bits and pieces lying around that might be cannibalised. No luck yet.

I did have a spare on an old Conduct break system that my Giant Revolt came with, since replaced. It didn't seem to fit properly and the first time I tried to shift it snapped. I'd like to think that was due to my ineptitude rather than it not fitting because of wear of the metal lever. And there seems to be some - you can see metal filings on the inside of the lever in the picture below, so I think it's been missing for some time and lever is finally pushing past the shifting bracket that the lever support would normally contact.
Automotive tire Hood Tire Automotive lighting Bicycle part


That little hole in this top of the lever is where the lever support fits in.

Since my prospects of getting a replacement any time soon are next to zero, does anyone have any suggestions for something to take its place in the mean time?
 

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Discussion Starter · #3 ·
As a workaround, would it help to partially pull the brake as you upshift? It wouldn't work on my cable pull 5800 levers, but the lever and plastic piece look different from yours.
Thanks for the suggestion. I have now had a closer look at the lever and it's clear that the support has been missing for some time. The metal has ground away quite a lot. If the support from the Conduct lever was the right part it's no wonder it broke. It wouldn't have snapped in and probably moved as soon as I tried to shift.

Why did it come off? Bad design? Bad assembly? I might hit up Shimano for a warranty claim. But 105 and Ultegra shifters are sold out everywhere over here. I'm still open to the idea of a hack in the interim if anyone has any ideas.
 

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Discussion Starter · #5 ·
There's not a lot between the regular and small-hand variant. I don't have huge hands (no jokes please!) but the 7025s were on special at the time I bought them. It would be good if the top was the same and the 7020 lever assembly fit it. Mind you, at the moment that might be hard to find too. So much for Shimano ramping up production.
 

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There's not a lot between the regular and small-hand variant. I don't have huge hands (no jokes please!) but the 7025s were on special at the time I bought them. It would be good if the top was the same and the 7020 lever assembly fit it. Mind you, at the moment that might be hard to find too. So much for Shimano ramping up production.

It's more of a delivery issue then a production issue these days. In my experience, getting replacement parts from Shimano has always been difficult, even before all this mess (think 5 or 6 years ago). Shimano is more interested in selling complete shifters then making small replacement parts. Specifically with shifters. I can't count the number of shifters I've replaced over the years just because a small part was broken. Definitely not Campagnolo when it comes to replacement parts.
 

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Discussion Starter · #7 ·
Thanks for your thoughts, fellow cyclists.

I talked to a chap at SJS Cycles in the UK which seems to specialise in small parts. He seemed to think that 7025 lever assemblies are not a thing. (Shimano is looking a lot like Apple Computer at this point!)

But I have good news. I found a local guy who was selling a brand new Dura Ace shifter for a very good price. It might look odd with 105 on the other side, but right now I don't care. It will be a week and a bit before I can get it fitted, but I am a happy rider, even if I have to use my old clunker for a bit.

Upwards and onwards!
 

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I've been having trouble shifting my front derailleur and I realised today that the lever support for my Shimano ST-R7025 is missing. It's a plastic part (part number Y63X80010) that sits on the inside of the outer lever.
I talked to a chap at SJS Cycles in the UK which seems to specialise in small parts.He seemed to think that 7025 lever assemblies are not a thing. (Shimano is looking a lot like Apple Computer at this point!)
SJS Cycles have that part you wanted in stock.

 
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