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10-10-2019, 02:50 AM | #1 |
Newbie Join Date: Jun 2019 Location: Cali
Posts: 49
| Anyone using pen mod? droop / low cg
I decided to try toss it in today..haven't had a chance to try it yet, but if you're interested in running droop / low cg..check out my super basic video, haha. https://youtu.be/CgfaoKsC9oQ Check out TRXellence vol 4 if you want to see some nice rock climbing. vol5 will include this mod |
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10-10-2019, 10:29 AM | #2 |
I wanna be Dave Join Date: Oct 2012 Location: Medina
Posts: 2,263
| Re: Anyone using pen mod? droop / low cg
Interesting. I've used fuel line on the internal shock shaft before to limit travel, but that's obviously static. You get what you get. I like the idea of the spring collapsing under axle/wheel weight so your wheels drop and will still provide traction in "holes", but in more vertical state they'll suck that shock back up. Have you tested yet? If so, how'd it go? |
10-10-2019, 10:43 AM | #3 |
Slow is the new Fast Join Date: Nov 2013 Location: Winterpeg
Posts: 2,886
| Re: Anyone using pen mod? droop / low cg Can only imagine it will help a lot on steep climbs, side-hilling etc. Post up your experiences with it, maybe even some running video Curious to hear about how it works out
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10-10-2019, 10:46 AM | #4 |
Gold Star Baby! Join Date: Dec 2017 Location: Las Vegas
Posts: 2,554
| Re: Anyone using pen mod? droop / low cg
It’s popular out here among some of the locals, their trucks usually do pretty well. Just gotta make sure the springs are from the same types of pens. I’d much rather do the pen mod instead of the internal limiters. I dabbled with plastic spacers last year but disliked how much travel I lost. Also, the way I set up the shocks now they usually have about a 30% droop so the limiters don’t even lower the ride height unless the springs are too stiff IMO. |
10-10-2019, 11:40 AM | #5 | |
I wanna be Dave Join Date: Oct 2012 Location: Medina
Posts: 2,263
| Re: Anyone using pen mod? droop / low cg Quote:
I run about 30% as well Topher. I agree, the idea of the springs being active versus just a static limit appeals to me. I may have to play around with this. | |
10-10-2019, 11:50 AM | #6 |
RCC Addict Join Date: Sep 2014 Location: Ft. Lauderdale, Florida
Posts: 1,229
| Re: Anyone using pen mod? droop / low cg
How does this pen mod work, you put the pin Springs over the shock shaft inside the shock? Sent from my LM-G710VM using Tapatalk |
10-10-2019, 11:53 AM | #7 | |
Gold Star Baby! Join Date: Dec 2017 Location: Las Vegas
Posts: 2,554
| Re: Anyone using pen mod? droop / low cg Quote:
This effectively will “store” some of the shock shaft inside the body, but since it’s a spring it will still allow the shock shaft to drop out when the opposite side articulates. With a static limiter (nice word Walsh) the shaft that’s hidden won’t drop out because the spacer would prevent it from doing so. | |
10-10-2019, 11:55 AM | #8 |
RCC Addict Join Date: Sep 2014 Location: Ft. Lauderdale, Florida
Posts: 1,229
| Re: Anyone using pen mod? droop / low cg
Do you run the shock shaft through the center of the pen spring? Or no? Sent from my LM-G710VM using Tapatalk |
10-10-2019, 11:58 AM | #9 |
Gold Star Baby! Join Date: Dec 2017 Location: Las Vegas
Posts: 2,554
| Re: Anyone using pen mod? droop / low cg |
10-10-2019, 12:05 PM | #10 |
RCC Addict Join Date: Sep 2014 Location: Ft. Lauderdale, Florida
Posts: 1,229
| Re: Anyone using pen mod? droop / low cg |
10-10-2019, 12:16 PM | #11 |
Rock Crawler Join Date: Dec 2005 Location: Marietta
Posts: 917
| Re: Anyone using pen mod? droop / low cg
Seems like bleeding the shocks would be more difficult with a spring under the piston.
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10-10-2019, 03:17 PM | #12 | |
I wanna be Dave Join Date: Oct 2012 Location: Medina
Posts: 2,263
| Re: Anyone using pen mod? droop / low cg Quote:
I tries.....I tries! | |
10-10-2019, 11:05 PM | #13 |
Newbie Join Date: Jun 2019 Location: Cali
Posts: 49
| Re: Anyone using pen mod? droop / low cg
Well, I took a quick run with it..I'm still a little on the fence, seemed to handle a little less predictably for me. But if you watch until near the end, I do a pretty gnarly wall climb..that I'm not quite sure would be possible without the pen springs, tbh. Check it out if you want. https://youtu.be/g-pD0sMx_nA |
10-10-2019, 11:21 PM | #14 |
I wanna be Dave Join Date: Sep 2019 Location: US
Posts: 2,408
| Re: Anyone using pen mod? droop / low cg
Maybe you're aware...and, maybe you're not aware...but there are already available scale shocks with internal springs. Yeah Racing, Hot Racing, and RC4WD, all make crawler shocks with internal springs. Most use no oil (other than a very minor amount, to keep the shaft lubricated. ~ More peace, love, laughter, & kindness would make the world a MUCH better place |
10-10-2019, 11:32 PM | #15 | |
Newbie Join Date: Jun 2019 Location: Cali
Posts: 49
| Re: Anyone using pen mod? droop / low cg Quote:
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10-11-2019, 12:04 AM | #16 | |
I wanna be Dave Join Date: Sep 2019 Location: US
Posts: 2,408
| Re: Anyone using pen mod? droop / low cg Quote:
All of my race vehicle (with the exception of my XRAY T4) use TLR shocks (being that they're all TLR vehicles, and I find them to also be excellent. My first (and, currently, only...although, not for long, of that I am certain) crawler, the just-released Axial Capra, uses Axial shocks...although, in a matter of speaking, I'd be willing to bet they're more 'Losi/TLR' than 'Axial'. While I will give the stock Capra shocks a "chance", I do have a replacement (Pit Bull Tires BDS Kronik 90mm) in mind, shock I start having problems work the stock shocks. ~ More peace, love, laughter, & kindness would make the world a MUCH better place | |
10-12-2019, 11:55 AM | #17 |
Quarry Creeper Join Date: Nov 2018 Location: Oakley
Posts: 479
| Re: Anyone using pen mod? droop / low cg
I would imagine this would still act like a “static spacer” to a point. At full extension, the trx4 springs are just barely in contact with the seats. I would imagine the pen spring would hold up the shock from going full extension to some degree. Also, does the pen spring coil bind when full compressed. That would also be static spacerish. |
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