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Ask DocSk8 (Expert Indoor Skate Building Advice) This forum is different then the other SkateLog forums in that it is not a discussion forum, but rather a place you can ask skate building expert Fred "DocSk8" Benjamin about building and repairing indoor speed, derby, and jamskate quad roller skates. Please start a new thread for each new question.

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Old October 22nd, 2014, 03:42 PM   #1
LL_Rule_J
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Default Mag Avenger Toe Stop Thread Damage

Hi,

Ive had short stem big blocks on my plates since day one, ive just tried to use standard stem gumballs but when i removed the big bloc's i noticed the thread is quite chewed up, Gumballs wont screw in very far.

Whats the best way to go about repairing such a problem?


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Old October 22nd, 2014, 03:56 PM   #2
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I chase it with a 5/8 - 18 tap. Several of my local sk8rs seem to want to run them below the safe minimum.. Engineering spec says 5 turns in minimum. We have found 4 turns in to be the absolute minimum you can get away with. YMMV Please ensure you put a little lube on the stop threads when installing them. This may prevent future occurrences of your issue.
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Old October 22nd, 2014, 04:05 PM   #3
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Cheer, Taps be expensive! but ill look into that, Thanks
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Old October 22nd, 2014, 06:47 PM   #4
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Default Define expensive..

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Originally Posted by LL_Rule_J View Post
Cheer, Taps be expensive! but ill look into that, Thanks

Define expensive. Sells on the Bay have them for around 9.99 shipped.

OK another option. Make a thread chaser. Steel bolt in the correct thread size. Carefully grind 2 flats on opposite sides of the threads, about 1/3 of the diameter in. That should do the trick on mag and aluminum plate threads.
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Old October 23rd, 2014, 12:32 AM   #5
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Quote:
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. Several of my local sk8rs seem to want to run them below the safe minimum.
Same here Doc. Loads of girls running them as close as they can get to the ground. Some 250-300lb people on only a few threads of weak aluminum. I always encourage skaters to run them high up into the plates. Keeps things out of the way, stronger grip on the stem with plates that have an adjustment for it, and you can really get a good lean on them for good grip when they don't immediately touch the floor as your heel comes up.
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Old October 23rd, 2014, 05:45 PM   #6
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Sounds like there could be a market for toe stops with longer shafts...

Otherwise, maybe let them know that using shorter wheels would also bring the toe stop closer to the ground.
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Old October 23rd, 2014, 06:49 PM   #7
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Default Good points.

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Sounds like there could be a market for toe stops with longer shafts...

Oh there certainly is. Unfortunately the derby had demanded shorter shafts the season before..

Otherwise, maybe let them know that using shorter wheels would also bring the toe stop closer to the ground.
Most of them (locally) are on 58mm wheels now.
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Old October 23rd, 2014, 11:49 PM   #8
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There's just no pleasing some people, is there?
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Old October 24th, 2014, 06:27 AM   #9
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There's just no pleasing some people, is there?
You have no idea....
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Old October 24th, 2014, 01:07 PM   #10
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Quote:
Originally Posted by Doc Sk8 View Post

Define expensive. Sells on the Bay have them for around 9.99 shipped.

OK another option. Make a thread chaser. Steel bolt in the correct thread size. Carefully grind 2 flats on opposite sides of the threads, about 1/3 of the diameter in. That should do the trick on mag and aluminum plate threads.
Thanks, that sounds like a plan. My local hardware shop had the tap but it was 65. ebay in europe hasnt turned up anything very cheap that can be delivered quick.

I like this idea though ill give it a shot!

Cheers,
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Old October 28th, 2014, 02:19 AM   #11
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Especially with magnesium, make sure to proceed slowly and use some oil while tapping (in this case, "chasing") those threads, and clean out your tap frequently. This applies to both factory-made and homemade taps...

A little bit of antiseize on the toe stop shafts will go a long way towards preventing galling of those threads in the future.
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Old October 28th, 2014, 07:00 PM   #12
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Quote:
Originally Posted by matguy View Post
Sounds like there could be a market for toe stops with longer shafts...

Otherwise, maybe let them know that using shorter wheels would also bring the toe stop closer to the ground.
The market has been asking for toes stops with extra long stems for a while now, but manufacturers are hesitant to move forward. I don't understand their inertia.

Lots of top level derby skaters want their stops as close to the ground as possible. There are lots of reasons for them wanting to do this. Too bad the manufacturers wont listen to their customers and dealers.
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Old October 28th, 2014, 07:22 PM   #13
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Default As I pointed out before...

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Originally Posted by Kennedy View Post
The market has been asking for toes stops with extra long stems for a while now, but manufacturers are hesitant to move forward. I don't understand their inertia.

Lots of top level derby skaters want their stops as close to the ground as possible. There are lots of reasons for them wanting to do this. Too bad the manufacturers wont listen to their customers and dealers.

I know some of them did, listen when the derby world wanted them short. Now the manufacturers have a lot of short ones in inventory. Be careful what you ask for and all that.
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Old October 31st, 2014, 04:55 AM   #14
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EDIT - Nevermind, too far off-topic for Doc's forum.
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Last edited by JHB; October 31st, 2014 at 04:56 AM. Reason: Off topic
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