Stealth Fighter/Bomber - Clamping torque blocks - All gone!

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Stealth Fighter/Bomber - Clamping torque blocks - All gone!

Post by Cowardlyduck » Jan 21, 2017 6:47 am

Hi guy's,

As reported over on the main Stealth owners thread, I've designed and had made some replacement torque blocks to fit the Stealth Fighter and Bomber.
The purpose of these torque blocks is to solve, once and for all, the countless axle and torque block play/rotation issues primarily caused by regen or high power on the Fighter and Bomber.

Here's a bunch of photos so you know what you're getting if you order one of these.
Image
ImageImage
Image
ImageImage
Image

I've successfully tested these torque blocks to the limit on my HS4080 pushing nearly 6KW. The axle on this motor is M12 size and therefore put the most possible stress on the clamping mechanism for testing purposes.

The initial design solved the axle rotation play issues but did not prevent the whole torque block rotating inside the drop-out recess, as seen here:


I solved this problem by designing the add-on hold piece to clamp the block to the outside of the dropout.
Here is a test showing the wheel spinning up to 100kph, then Regening down to 0. As you can see there is no movement:

I found that I only needed the 'hold' clamping piece on one side being the freewheel side, but depending on how much peoples dropout slots have spread, they may need one on each side so I will include one 'hold' clamping piece as standard with each torque block. It should also be possible to use 2 hold pieces on one side if you get some 45-50mm bolts.

So finally after spending hundreds on prototypes, I finally placed the order and have 20 x 3 piece torque blocks on order from the factory. I expect them to arrive within the next 2-3 weeks, maybe a bit longer due to the Chinese new year.

When you order 1 torque block, you will get:
1 x Torque Block Upper
1 x Torque Block Lower
1 x Torque Block Hold
2 x M4 35mm 316 Stainless Allen Bolts
2 x M4 40mm 316 Stainless Allen Bolts
4 x M4 Nylock nuts

Pricing is:
$50 Each, or $100 for a set.
Flat rate shipping will be $8 within Australia and international $20.
I will accept Paypal only.
PM me to place an order.

The 35mm bolts are used if you only use the Torque Block Upper and Lower. The 40mm Bolts are used if you also use the Torque Block Hold as seen in the second video above.
The assembly process is as follows: Torque clamp bolts to 1nm, axle nut to 20nm, clamp bolts to 30nm, axle nut to 50nm. This ensures the clamps for both the axle and the dropout are tight while also having the axle pulled through by the nut.

The axle slot is sized to fit motor axle sizes, M12, 1/2", and M14. If you need it, it may be possible for you to widen the slot using a dremel to M16 as the blocks are made out of regular steel.
I recommend painting or powder coating these to prevent rust. I haven't had them painted as I know peoples colour preferences will vary.

This is going to be a very limited run. I am only getting 20 (10 sets) made.
I might consider getting another run made if there's enough interest, but there would have to be at least another 10+ people wanting them.

***EDIT*** All sold out.

See the bottom of this thread if you've missed out and would still like to get one.

Cheers
Last edited by Cowardlyduck on Jan 21, 2018 10:49 pm, edited 12 times in total.
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Re: Stealth Fighter/Bomber - Clamping torque blocks - Only 2

Post by Cowardlyduck » Jan 27, 2017 5:39 pm

High guy's,

Just thought I would post an update regarding my testing on these.

I already fully tested them enough to the point that I was happy to place the order with the factory, but I've also been commuting on my Fighter a lot lately and also taking some very knarly off-road detours.
The torque blocks have taken it all in their stride without any issues at all. My marks on the nuts/blocks are still perfectly aligned and the blocks haven't moved in the drop-out slots at all.
This all with my Fighter now hitting 88Kph on the flats, and smashing over some of the roughest terrain I've ever ridden, all with Regen braking as my primary mean of braking.

Cheers
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Re: Stealth Fighter/Bomber - Clamping torque blocks - Only 2

Post by Cowardlyduck » Feb 03, 2017 11:06 pm

I don't mean to tease, since I'm the only one with these torque blocks at this stage, but these things are freaking awesome! :!:

I've now put over 1000km on mine and they haven't moved at all. See for yourselves:
Image
Image

I'm still waiting on the shipment from the manufacturer, sorry guy's, but as soon as I have them in hand I will let you all know.

Cheers
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Re: Stealth Fighter/Bomber - Clamping torque blocks - Only 2

Post by PRW » Feb 06, 2017 5:59 pm

very impressive, CD... you're not thing of branching out into Phasors, are you? :D
I am looking at something similar for the Phasor - just started playing with SketchUp now

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Re: Stealth Fighter/Bomber - Clamping torque blocks - Only 2

Post by Cowardlyduck » Feb 06, 2017 10:13 pm

PRW wrote:very impressive, CD... you're not thing of branching out into Phasors, are you? :D
I am looking at something similar for the Phasor - just started playing with SketchUp now
Thanks!
Well, I don't have a Phasor, so not sure what the dropout design is like, but if it's anything like the Fighter/Bomber design then there's no reason why this type of torque block couldn't work.

Post up the dropout dimensions and I'll see if the current version might even work as is. :)

Cheers
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Re: Stealth Fighter/Bomber - Clamping torque blocks - Only 2

Post by PRW » Feb 06, 2017 11:07 pm

I haven't measured the dimensions, but I did a rough (undimensioned, not to scale) drawing to try and get it into my own head. Looks fairly different, I'm afraid!
IMG_1518.JPG
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IMG_1514.JPG
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Re: Stealth Fighter/Bomber - Clamping torque blocks - Only20

Post by Cowardlyduck » Feb 07, 2017 12:24 am

Yeah, totally different PRW, but I'm glad I've inspired others to solve this problem in a similar way.

PM me if you want the details of some suppliers I used for prototyping.

Cheers
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Re: Stealth Fighter/Bomber - Clamping torque blocks - Only20

Post by PRW » Feb 07, 2017 12:27 am

ah - just had a closer look - it seems I have 160mm dropouts! changes what I should/ could do...
IMG_1520.JPG
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Re: Stealth Fighter/Bomber - Clamping torque blocks - Only20

Post by Cowardlyduck » Feb 15, 2017 10:09 pm

Hi guy's,

The factory has finally finished the manufacture of the 20 torque blocks and will be shipping them imminently.

Image

I also got them make me a couple of clamping blocks for my other bikewhich has similar axle rotation issues.

I'll wait till they land before I start taking orders.

Cheers
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Re: Stealth Fighter/Bomber - Clamping torque blocks - Only20

Post by Cowardlyduck » Feb 24, 2017 4:47 am

Hi guy's,

Ok, so I now have in hand 20 clamping torque blocks and am ready to take orders.
Image
Image
Image
Image
(I wasn't 100% happy with the finish from the factory, so I spent several hours hand polishing them all. Hence the markings above)

As mentioned above, they are $70 Each, or $120 for a set.
This is what you get for $70:
Image

And this is what you get for $120:
Image

Flat rate shipping will be $8 within Australia and international $20.
I will accept Paypal only.

PM me to place an order.

Cheers
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Re: Stealth Fighter/Bomber - Clamping torque blocks - Only13

Post by Cowardlyduck » Feb 28, 2017 4:51 am

Hi guy's,

Just a quick update to say I now only have 13 of these left. That's 6 sets + 1.

If your interested I would jump in soon as once these are gone that's it.

I also put together some installation instructions. These are included with every set I sent out, but I'll add it here for reference also. Cheers
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Re: Stealth Fighter/Bomber - Clamping torque blocks - Only13

Post by kiwiev » Mar 18, 2017 3:28 am

Only just seen this mate well done great work.

Cheers Kiwi

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Re: Stealth Fighter/Bomber - Clamping torque blocks - Only13

Post by Cowardlyduck » Mar 18, 2017 6:46 am

kiwiev wrote:Only just seen this mate well done great work.

Cheers Kiwi
Thanks!

I decided to take a second set for myself as I use 2 motor's and the '10mm' flats are different between them so I had to file one set (my original prototypes) where as I did not file the second set.
That being said, it is less important to have a tight fit on the flats through the main body of this torque block since the clamp more than makes up for any slack.

So that now leaves 11 for all you guy's.

Cheers
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Re: Stealth Fighter/Bomber - Clamping torque blocks - Only9

Post by Cowardlyduck » Mar 21, 2017 10:05 pm

Update. Another set just sold. Now only 9 left.

Cheers
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Re: Stealth Fighter/Bomber - Clamping torque blocks - Only7

Post by Cowardlyduck » Mar 22, 2017 6:37 pm

Another set gone. Only 7 now left.

Cheers
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Re: Stealth Fighter/Bomber - Clamping torque blocks - Only7

Post by Cowardlyduck » Jun 02, 2017 6:32 am

Hi guy's,

I still have 7 of these left if anyone is interested. They are doing nothing for me, so I want to move them on.

I've just dropped the price to $50 for one or $100 for a set.

PM me if your interested.

Cheers
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Re: Stealth Fighter/Bomber - Clamping torque blocks - Only5

Post by Cowardlyduck » Jul 10, 2017 7:12 pm

Update. Another set sold. Only 5 (2 sets + 1) now left.

Cheers
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Re: Stealth Fighter/Bomber - Clamping torque blocks - Only3

Post by Cowardlyduck » Jul 12, 2017 2:46 am

Update. Another set sold. Only 3 (1 set + 1) now left.

Cheers
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Re: Stealth Fighter/Bomber - Clamping torque blocks - Only3

Post by FL bomber » Nov 08, 2017 10:51 am

I will take a set for my bomber. If still available

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Re: Stealth Fighter/Bomber - Clamping torque blocks - Only3

Post by Cowardlyduck » Nov 08, 2017 4:41 pm

FL bomber wrote:I will take a set for my bomber. If still available
PM Sent.
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Re: Stealth Fighter/Bomber - Clamping torque blocks - Only3

Post by Cowardlyduck » Nov 10, 2017 5:51 pm

Update. Another set sold. Only one now left for $50 plus shipping as per the first post.

A few others have gotten away with just using one, so this is still useful if anyone needs to solve axle rotation issues on their Fighter/Bomber.

Cheers
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Re: Stealth Fighter/Bomber - Clamping torque blocks - All gone!

Post by Cowardlyduck » Jan 21, 2018 10:48 pm

All gone!

These are now all sold and I'm pleased to say I only have my own personal use torque blocks left.

If anyone is interested in getting these made at this point, I am happy to share the sketchup drawings I made.

Be aware though, that getting just one or two made is going to cost upwards of $150-$250USD...as per my original prototyping costs.

If anyone has access to a CNC router I'm sure there would be a small amount of interest going forward to have more made.

Cheers
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