The QUICK question thread.....

ozzybmx

ozzybmx

taking a shit with my boobs out
Calvin27 said:
Anyone had experience running these?

Buy Bike Bicycle Cycling Wheel Fork Axle adapter Front 15mm to 9 QR Thru | CD

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Not sure of the science, but I assumed that the whole idea of qr is it compresses axially and thus there are knurly bits on the ends of the hub to grab it. This one doesn't. Anyone used these extensively without issues?
Click to expand...
I have ran 2 of them for ages on the boys XC bikes. Still got one on #2's bike.

Both wheelsets were built with DT350's 15mm thru axle hubs on Nextie Premium XC rims. The wheelsets were around 1400g.

The forks were Manitou R7 with QR and an old SID with QR, #1 sons bike got upgraded to a thru axle Fox Factory about a year ago.

My 9mm to 15mm came from AliExpress as they were the only ones doing them a few years ago.

Reckon I have a spare here somewhere.

www.aliexpress.com

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fjohn860

fjohn860

Alice in diaperland
Does anyone have a source/lead on shimano lever piston seals?


There is all the usual suspects like aliexpress/eBay, but just wondering if anyone knows the size of them and has purchased from a seal place...
 
Labcanary

Labcanary

One potato, two potato, click
fjohn860 said:
Does anyone have a source/lead on shimano lever piston seals?


There is all the usual suspects like aliexpress/eBay, but just wondering if anyone knows the size of them and has purchased from a seal place...
Click to expand...
I don't know the size but I think it's a "skirt" seal or whatever it's called.

There is this:
www.ebay.com.au

Bicycle Brake Disc Lever Piston Apron Sealing Ring For-SHIMANO DEORE XT M785 SLX | eBay

Find many great new & used options and get the best deals for Bicycle Brake Disc Lever Piston Apron Sealing Ring For-SHIMANO DEORE XT M785 SLX at the best online prices at eBay!
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But the pictures don't fill me with confidence! I've not bought them from the above link either.
If the Ali seals fit genuine shimano pistons, I'm happy to send you a couple to try.
 
fjohn860

fjohn860

Alice in diaperland
Labcanary said:
I don't know the size but I think it's a "skirt" seal or whatever it's called.

There is this:
www.ebay.com.au

Bicycle Brake Disc Lever Piston Apron Sealing Ring For-SHIMANO DEORE XT M785 SLX | eBay

Find many great new & used options and get the best deals for Bicycle Brake Disc Lever Piston Apron Sealing Ring For-SHIMANO DEORE XT M785 SLX at the best online prices at eBay!
www.ebay.com.au

But the pictures don't fill me with confidence! I've not bought them from the above link either.
If the Ali seals fit genuine shimano pistons, I'm happy to send you a couple to try.
Click to expand...
Yah, they look like hydraulic U-cup seals. We use them at work which is why I was thinking I might be able to get some locally quicker than an online order.

Thanks for the offer, I will pull mine out this weekend I think and see what I can find through our suppliers.
 
blacksp20

blacksp20

Likes Bikes and Dirt
fjohn860 said:
Yah, they look like hydraulic U-cup seals. We use them at work which is why I was thinking I might be able to get some locally quicker than an online order.

Thanks for the offer, I will pull mine out this weekend I think and see what I can find through our suppliers.
Click to expand...
Can you report back if you find something please.
 
Calvin27

Calvin27

Eats Squid
Apologies for the questions and bumping this thread. In case youse haven't figured out I am in the process of restoring a junker bike (26 for all the luddites).

I have an EC34 headtube, I suspect it's not possible to run a tapered steerer or are there stacked lower headsets that space out the tapered part of the fork? Found some forks for cheap but not sure it can be done.
 
ozzybmx

ozzybmx

taking a shit with my boobs out
Calvin27 said:
Apologies for the questions and bumping this thread. In case youse haven't figured out I am in the process of restoring a junker bike (26 for all the luddites).

I have an EC34 headtube, I suspect it's not possible to run a tapered steerer or are there stacked lower headsets that space out the tapered part of the fork? Found some forks for cheap but not sure it can be done.
Click to expand...
From what I remember, 44mm is the minimum to fit an external bearing cup to run a tapered on a non tapered frame. This was done by fitting an external cup to ZS44 straight steerer frame, giving you around an addition 10mm stack at the bottom.
 
birddog69

birddog69

Likes Bikes and Dirt
ozzybmx said:
From what I remember, 44mm is the minimum to fit an external bearing cup to run a tapered on a non tapered frame. This was done by fitting an external cup to ZS44 straight steerer frame, giving you around an addition 10mm stack at the bottom.
Click to expand...
Sounds right. I have a hard tail with a straight 44mm tube running a tapered steerer with an external bottom cup.
 
fjohn860

fjohn860

Alice in diaperland
fjohn860 said:
Yah, they look like hydraulic U-cup seals. We use them at work which is why I was thinking I might be able to get some locally quicker than an online order.

Thanks for the offer, I will pull mine out this weekend I think and see what I can find through our suppliers.
Click to expand...
blacksp20 said:
Can you report back if you find something please.
Click to expand...
Well, got the seals measured up at the local seal place. Nothing they could supply "off the shelf" was an exact match to th OEM seals. I ordered 2 of what they had that was the closest standard size (metric), but no dice (I did find one imperial size online that matches one of the seals but nothing to match the 2nd seal).

They are just not close enough in size and the durometer of the seals was a fair bit harder than the originals. I got them fitted on one piston, and installed it in the lever but they are too tight and the spring can't retract the piston.

So I cleaned up the old ones and put them back in.

Given some time, I could manufacture pistons that suit the metric seals, but probably not worth it considering you can buy them from ebay/aliexpress fairly cheap (I did buy an ebay special set of pistons and seals, just in case).

If the seals leak again and I assume they will, I will put the ebay ones in and report back..
 
ozzybmx

ozzybmx

taking a shit with my boobs out
fjohn860 said:
Given some time, I could manufacture pistons that suit the metric seals, but probably not worth it considering you can buy them from ebay/aliexpress fairly cheap (I did buy an ebay special set of pistons and seals, just in case).
Click to expand...
Grab the RISK branded ones from AliEx, I have successfully replaced about 3 Shimano and 2 SRAM.

Grab yourself a fine set of circlip pliers too, those little circlips are a chunt.

The pliers can also be got from AliExp... though I wouldn't be using them for repeated work, they are cheap shite that do the occasional job ok.
 
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The Duckmeister

The Duckmeister

Has a juicy midrange
Calvin27 said:
Apologies for the questions and bumping this thread. In case youse haven't figured out I am in the process of restoring a junker bike (26 for all the luddites).

I have an EC34 headtube, I suspect it's not possible to run a tapered steerer or are there stacked lower headsets that space out the tapered part of the fork? Found some forks for cheap but not sure it can be done.
Click to expand...
No way in hell a tapered steerer will fit. You're looking at max 30mm ID through the cup spigot, so even allowing for external cup depth the steerer won't cut in that steeply to fit.
 
fjohn860

fjohn860

Alice in diaperland
ozzybmx said:
Grab the RISK branded ones from AliEx, I have successfully replaced about 3 Shimano and 2 SRAM.

Grab yourself a fine set of circlip pliers too, those little circlips are a chunt.

The pliers can also be got from AliExp... though I wouldn't be using them for repeated work, they are cheap shite that do the occasional job ok.
Click to expand...
Seriously though, these deore xt's don't have a circlip...
Compress_20230120_091149_9365.jpg
 
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