Doc's ULTIMATE TORQUE ARMS fit most of the frame UPDATE 2013

[Deutch420]

Doc,
Do you think this is a safe way to hook up your torque arms? I have DP420, but i didnt use it with this application. I have about 50 miles on these torque arms @ 10kw on a 5304 so far. They have not loosened up at all. The hub axle has not spun at all either. The axel is still straight up and down (normally, without the dropouts, my hub axel would spin back to about 2 O'clock. Now it stays at 12 O'clock. I know thats not safe, but i did have about 1500 mile son that setup at 8KW w/o dropouts. stupid, i know.)
I welded a plate to your dropouts so it could be mounted, with hardware, to the bike. i also used a lathe to trim down the thickness of the dropout so my axle bolts could untilize enough threads to fully function. If i didnt lathe down the thickness of the dropout, my axle bolts could only use 1-2 threads. As i ran out of axle threads b/c i added the thick dropouts.

Do you think i need to add DP420?

tarm1.png (164.02 KiB) Viewed 715 times

tarm2.png (142.41 KiB) Viewed 715 times

tarm3.png (134.08 KiB) Viewed 715 times

[teklektik]

Gee - that looks pretty slick.
I'll bet your cutting bits were protesting mightily to turn that hard steel....

[Doctorbass]

Doc,
Do you think this is a safe way to hook up your torque arms? I have DP420, but i didnt use it with this application. I have about 50 miles on these torque arms @ 10kw on a 5304 so far. They have not loosened up at all. The hub axle has not spun at all either. The axel is still straight up and down (normally, without the dropouts, my hub axel would spin back to about 2 O'clock. Now it stays at 12 O'clock. I know thats not safe, but i did have about 1500 mile son that setup at 8KW w/o dropouts. stupid, i know.)
I welded a plate to your dropouts so it could be mounted, with hardware, to the bike. i also used a lathe to trim down the thickness of the dropout so my axle bolts could untilize enough threads to fully function. If i didnt lathe down the thickness of the dropout, my axle bolts could only use 1-2 threads. As i ran out of axle threads b/c i added the thick dropouts.

Do you think i need to add DP420?

tarm1.png

tarm2.png

tarm3.png

That's a perfect installation very strong!.. adding the DP420 seems now useless.

Doc

[oatnet]

Great work and ingenuity! That is one beast of a torque arm.

Is the bolt for the torque arm going through a pivot in the rear suspension, or is that a hard tail and you drilled a hole through?

-JD

[Deutch420]

Gee - that looks pretty slick.
I'll bet your cutting bits were protesting mightily to turn that hard steel....

Yea, the bits weren't too happy, but got the job done relatively fast. Thanks!

That's a perfect installation very strong!.. adding the DP420 seems now useless.

Doc

Okay, then i will leave it as is; without the DP420

Great work and ingenuity! That is one beast of a torque arm.

Is the bolt for the torque arm going through a pivot in the rear suspension, or is that a hard tail and you drilled a hole through?

-JD

Thanks! Im not really sure how to answer that. I guess i would say neither. Its not a hard tail, its a full suspension Kona DH bike. The way the geometry of the suspension is set up, where the bolt goes through is not a pivot point. The pivoting happens above the swingarm, on some additional bracket they built. The pre drilled hole i used, seems to just be where the upper swing arm meets the dropout. It is 100% stationary. All i did was elongate the hardware to accommodate the extra girth from the added bracket. Hope this makes sense.

[Thecaptain115]

Bump. I want to order some and Doc needs more interest for another production run.

[Doctorbass]

Bump. I want to order some and Doc needs more interest for another production run.

Tehre is 9 people on the list. I wait to have more to start the production. and i'll need sometime to make them.

Doc

[Thecaptain115]

How many you need to commit? I might buy some extras.

[Doctorbass]

How many you need to commit? I might buy some extras.

At least to cover the total cost wich is around 15 sets + i need to have the time window to make them...

I never know that i would need to produce 300+ T-A set when i began this project of personal T-A desing set

they are more popular than i thought

Doc

[ecross]

Dear Doc,

I need also one T-A set for my new KMX-Trike.

Best regards

ecross

[Doctorbass]

Dear Doc,

I need also one T-A set for my new KMX-Trike.

Best regards

ecross

Pm me i ll add you in the list

Doc

[sacko]

Pm sent

[daniel..]

Pm sent for ne or two sets.

[cwah]

I'd like to reduce the size of the torque arm. I tried to cut them with a hacksaw but it's like doing nothing.

Any idea how to do cut them?

[deVries]

I'd like to reduce the size of the torque arm. I tried to cut them with a hacksaw but it's like doing nothing.

Any idea how to do cut them?

It might be possible with a bench grinder wheel, unless you know someone with a powerful waterjet???

[Kin]

I'd like to reduce the size of the torque arm. I tried to cut them with a hacksaw but it's like doing nothing.

Any idea how to do cut them?

To be clear, why try to reduce it? If you're overhanging the edges of your dropout, you could just leave it overhanging. It's going to be a pita to cut. Is your hacksaw fresh and with the metal-cutting profile? You might get luck with some diamond dremel cutters (amazon has some cheap third party sellers) and running water, or a few of the ceramic disks (36 pack is like $6). Also, if you're obstruction is something barely obstructing, for my personally made torque arm I had .06 inches overlap with the wider weld on one of the sides, well, rather than cutting .06 inches off, I just beveled away with a grinder the amount that my torque arm stuck over the weld. (So I beveled a little .06" base triangle that cleared the weld.)

[Doctorbass]

I'd like to reduce the size of the torque arm. I tried to cut them with a hacksaw but it's like doing nothing.

Any idea how to do cut them?

To be clear, why try to reduce it? If you're overhanging the edges of your dropout, you could just leave it overhanging. It's going to be a pita to cut. Is your hacksaw fresh and with the metal-cutting profile? You might get luck with some diamond dremel cutters (amazon has some cheap third party sellers) and running water, or a few of the ceramic disks (36 pack is like $6). Also, if you're obstruction is something barely obstructing, for my personally made torque arm I had .06 inches overlap with the wider weld on one of the sides, well, rather than cutting .06 inches off, I just beveled away with a grinder the amount that my torque arm stuck over the weld. (So I beveled a little .06" base triangle that cleared the weld.)

Just to let you all know once again, This metal is the same as the one used to make some cutting tools... so to cut it you must have great special tools or...alot of patience...... or.. a laser or waterjet cutter


The cheapest way is using a grinder...
Doc

[Kin]

Yes! Very true. I probably shouldn't have suggesting making sure the hacksaw had the right profile.

But that's why dremel disks rule . It's diamond bit disks and ceramic disks are just grinding away a thin groove. I would really dislike grinding any serious amount from something tiny like the torque arm.

[cwah]

Thanks Guys, this torque arm makes me think about my Kryptonite U lock. So tough! lol

But an angle grinder should be able to cut it. Going to get one.

[Doctorbass]

Hello Guys,

Please, dont delay all your great project to wait for the next batch. I'm really busy these days and the vacancy coming so my load is high and i might delay the T-A few more weeks.

Like i said, i never expected that they become so popular and to sale so many of them... it appear i'm victim of their succes

Preparing all them and managing and making follow up on all sales around the world is taking time for me and i dont have alot time now and summer is already at the second half..

ill inform you all once i have more free time to manage that.

I hope you understand guys and i dont want to disappoint you all.

Doc

[tedcs]

Very nice piece of work

[Emoto]

Hello Guys,

Please, dont delay all your great project to wait for the next batch. I'm really busy these days and the vacancy coming so my load is high and i might delay the T-A few more weeks.

Like i said, i never expected that they become so popular and to sale so many of them... it appear i'm victim of their succes

Preparing all them and managing and making follow up on all sales around the world is taking time for me and i dont have alot time now and summer is already at the second half..

ill inform you all once i have more free time to manage that.

I hope you understand guys and i dont want to disappoint you all.

Doc

Hi doc
Well looks like ill have to make my own then, if i start with mild steel will they be hard enough if i heat them with a blow torch then dip in oil, for a cromotor

[sardini]

Doc take your time
but sooner or later i will need some of this babes for my new HS4080 rear wheel motor

[Mad]

Count me in for 2 sets when ever you can
Thanks in advance

[2fat]

Hi doc
Well looks like i need 1set with a DP420 epoxy for GT bike, i live in singapore, can you shipping it
Tell me the shipping price ? useing by USPS and email at :- hussin.syed@yahoo.com ....PLS
i pay by paypal
Thanks ...need reply back

Hi doc
i send PM ...Pls reply back ....PLS