19" Trek 4300 frame w/custom torque plates - Price reduced

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19" Trek 4300 frame w/custom torque plates - Price reduced

Postby neptronix » Wed Jun 29, 2011 4:20 am

Up for sale is my 19.5" ~2003 Trek 4300 frame with a set of *very* strong torque plates.

One side is made from a tow hitch, the other is just ordinary steel. These plates have held up to a 230lb rider pushing over 6000 watts.

The Trek 4300 frame is pretty well regarded as bombproof. Very tough aluminum frame, and 5 pounds all in all, including the headset, plates, derailleur hanger, and seat clamp. Excellent foundation for a build.

One thing to note, frame is in great condition but i did make a few modifications to it:
1) the center cable guide is widened to allow for a throttle cable to pass through it for a clean look.
2) The front derailleur cable guide was shaved off, This is so that i could run a super fat tire on a small wheel in back, and have the controller ( 18FET ) bolted to the rear triangle.
3) The vbrake bosses are shaved off, for the same reason. It will include a rear disc brake adapter ( not pictured. )

Price reduced to $60 for the frame + plates or best offer.
I spent $50 to get the toruqe plates alone made, lol.
Local pickup in Colorado Springs, CO. is best, otherwise can arrange shipping. Shouldn't be too expensive to ship.

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Last edited by neptronix on Thu Mar 29, 2012 9:06 am, edited 2 times in total.
ES facebook group: http://facebook.com/#!/home.php?sk=group_125035107565566&ap=1

The all-arounder: 8T MAC motor on a Trek 4500.
The girlfriend bike: 350W front MAC on a 700c Trek.
The wheelie machine: 20" Rear Magic Pie II on a Trek 4300 MTB
The Bus: ??? on a 'da bomb' cargo bike frame

Pro-tips for noobs: Avoid BMS Battery like the plague | Charge RC Lipos to 4.15v, stop discharging at 3.5-3.6v | Use torque plates/arms! | Rear mounted hubs are always best
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Re: 19" Trek 4300 frame w/custom torque plates Portland, OR

Postby neptronix » Fri Jul 01, 2011 7:54 pm

Any interest in it at all? priced too high? not an interesting item? too far away? please let me know. Am willing to work something out.

Otherwise may keep it and turn it into a drag bike or something.
ES facebook group: http://facebook.com/#!/home.php?sk=group_125035107565566&ap=1

The all-arounder: 8T MAC motor on a Trek 4500.
The girlfriend bike: 350W front MAC on a 700c Trek.
The wheelie machine: 20" Rear Magic Pie II on a Trek 4300 MTB
The Bus: ??? on a 'da bomb' cargo bike frame

Pro-tips for noobs: Avoid BMS Battery like the plague | Charge RC Lipos to 4.15v, stop discharging at 3.5-3.6v | Use torque plates/arms! | Rear mounted hubs are always best
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Re: 19" Trek 4300 frame w/custom torque plates Portland, OR

Postby Rifle » Mon Jul 04, 2011 1:54 pm

I sold a trek frame for at least $60 when I was in Portland. Price seems reasonable. I don't know how often people build a bike from parts for an ebike, but I did.
2807 9c front hub. 48v 20ah Ping. 12s2p Lipo.
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Re: 19" Trek 4300 frame w/custom torque plates Portland, OR

Postby LI-ghtcycle » Mon Jul 18, 2011 11:30 am

Hmm those torque arms look familiar ... :wink:

Good luck with the sale! I have been very pleased with all my trek frames, I'm sure it will prove a solid hard tail to build from. :)
Thank you Justin_Le for your selfless act of kindness! We all are in your debt.

My latest build: Vision R40 with Golden Motor "800W" Trike motor as mid-drive, NuVinci N171B rear wheel as transmission, 30 MPH on 12S (46V) 12 AH Turnigy Nanotech LiPo (25-50c) able to climb tall hills on a single Amp Hour! :grin:

http://www.endless-sphere.com/forums/viewtopic.php?f=3&t=29810&p=475990#p475990
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Re: 19" Trek 4300 frame w/custom torque plates - Colorado, U

Postby neptronix » Sun Dec 25, 2011 3:16 am

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Last edited by neptronix on Thu Mar 29, 2012 9:07 am, edited 1 time in total.
ES facebook group: http://facebook.com/#!/home.php?sk=group_125035107565566&ap=1

The all-arounder: 8T MAC motor on a Trek 4500.
The girlfriend bike: 350W front MAC on a 700c Trek.
The wheelie machine: 20" Rear Magic Pie II on a Trek 4300 MTB
The Bus: ??? on a 'da bomb' cargo bike frame

Pro-tips for noobs: Avoid BMS Battery like the plague | Charge RC Lipos to 4.15v, stop discharging at 3.5-3.6v | Use torque plates/arms! | Rear mounted hubs are always best
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Re: 19" Trek 4300 frame w/custom torque plates - Colorado, U

Postby stinkler » Thu Feb 02, 2012 11:13 pm

ooh oh mee mee!
Ive been looking for a nice hardtail.
You still have it? willing to ship it?
I cant find crap in my area :(

I would love the frame and fork.
What kinda disc brakes ya got?
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Re: 19" Trek 4300 frame w/custom torque plates - Colorado, U

Postby neptronix » Fri Feb 03, 2012 12:43 am

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( outdated post )
Last edited by neptronix on Thu Mar 29, 2012 9:08 am, edited 2 times in total.
ES facebook group: http://facebook.com/#!/home.php?sk=group_125035107565566&ap=1

The all-arounder: 8T MAC motor on a Trek 4500.
The girlfriend bike: 350W front MAC on a 700c Trek.
The wheelie machine: 20" Rear Magic Pie II on a Trek 4300 MTB
The Bus: ??? on a 'da bomb' cargo bike frame

Pro-tips for noobs: Avoid BMS Battery like the plague | Charge RC Lipos to 4.15v, stop discharging at 3.5-3.6v | Use torque plates/arms! | Rear mounted hubs are always best
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Re: 19" Trek 4300 frame w/custom torque plates - Colorado, U

Postby stinkler » Fri Feb 03, 2012 1:04 am

bummer! My hub has no provisions for a disc. :cry:
Oh well I will probably blow this hub up by then anyways.
Hit me up when you want to sell it. :lol:
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Re: 19" Trek 4300 frame w/custom torque plates - Colorado, U

Postby neptronix » Fri Feb 03, 2012 1:32 am

If you got regen, a big battery, and don't have mega hills, then shoot, forget about a back brake. That's how i roll with my magic pie race setup on the Trek 4300 - 203mm in the front, regen in the back.
ES facebook group: http://facebook.com/#!/home.php?sk=group_125035107565566&ap=1

The all-arounder: 8T MAC motor on a Trek 4500.
The girlfriend bike: 350W front MAC on a 700c Trek.
The wheelie machine: 20" Rear Magic Pie II on a Trek 4300 MTB
The Bus: ??? on a 'da bomb' cargo bike frame

Pro-tips for noobs: Avoid BMS Battery like the plague | Charge RC Lipos to 4.15v, stop discharging at 3.5-3.6v | Use torque plates/arms! | Rear mounted hubs are always best
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Re: 19" Trek 4300 frame w/custom torque plates - Colorado, U

Postby dogman » Sat Feb 04, 2012 10:06 am

For sale but not till August? Might want to change the title to for sale but not till August then eh? Let this thread die till September, then repost.
THE LIPO RULES. NEVER ABOVE 4.3V NEVER BELOW 2.7V DON'T PUNCTURE

Ideal charging /discharging range for Lipo, 3.65v minimum 4.1v maximum

See battery technology section, FAQ thread at the top of the page for lipo noob info.
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Re: 19" Trek 4300 frame w/custom torque plates - Colorado, U

Postby neptronix » Wed Mar 28, 2012 5:22 pm

stinkler; you still interested?

Rear disc only, does not include the fork, but includes the headset and crown race.. $60 plus shipping, or if you can come to Colorado and pick it up in person, then great. But the frame is really light so shipping shouldn't cost too much $.

( or $90 with the fork )

I love this frame but i am switching to DS, and i have a larger version of it which fits me better anyway.. :)
ES facebook group: http://facebook.com/#!/home.php?sk=group_125035107565566&ap=1

The all-arounder: 8T MAC motor on a Trek 4500.
The girlfriend bike: 350W front MAC on a 700c Trek.
The wheelie machine: 20" Rear Magic Pie II on a Trek 4300 MTB
The Bus: ??? on a 'da bomb' cargo bike frame

Pro-tips for noobs: Avoid BMS Battery like the plague | Charge RC Lipos to 4.15v, stop discharging at 3.5-3.6v | Use torque plates/arms! | Rear mounted hubs are always best
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Re: 19" Trek 4300 frame w/custom torque plates - Price reduc

Postby auraslip » Thu Mar 29, 2012 10:04 pm

This frame is a steal at the price. I guess no one wants to build up a commuter from scratch?
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Re: 19" Trek 4300 frame w/custom torque plates - Price reduc

Postby cal3thousand » Fri Mar 30, 2012 6:56 pm

I'm tempted. But I have a Trek frame (3700 IIRC) that I need to get rid of before I can take on another. Maybe if this hasn't moved by next weekend
#1: Diamondback Menona 700c (Commuter)
M/C: e-BikeKit geared rear w/BB7 with 12FET 40A Infineon ebikes.ca
GM 48V LiFePO4 10Ah racked; moving to 12S Turnigy 10Ah framed
+ Speedict, XC30TK disc, Alex Adventurer 700c Disc, Tektro 180mm hyd. with 42mm Kenda Urban


#2: Norco VPS Six DH (Fun) WIP
M/C: Clyte HT3525 (Thanks Meth!!!) http://Methtek.com with Lyen 18FET 24S Regen
Battery: 24S Turnigy 10Ah frame (ABS)

#3: Wifey Bike, Giant eSuede fully customized WIP
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Re: 19" Trek 4300 frame w/custom torque plates - Price reduc

Postby coldfusion594 » Sat Mar 31, 2012 8:22 pm

neptronix wrote:stinkler; you still interested?

Rear disc only, does not include the fork, but includes the headset and crown race.. $60 plus shipping, or if you can come to Colorado and pick it up in person, then great. But the frame is really light so shipping shouldn't cost too much $.

( or $90 with the fork )

I love this frame but i am switching to DS, and i have a larger version of it which fits me better anyway.. :)


Im interested in building a bike from scratch... is the fork you speak of actually good?

I may be interested in the frame because Trek makes a beastly frame, does anyone know of anyone that converted a hard tail into a full suspension bike? I am entertaining that thought because it may be cheaper :wink:

Another question, how much more money would have to be put in to make it an actual bike? in terms of tires, brakes, calipers etc.
just a ball park estimate at best.
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Re: 19" Trek 4300 frame w/custom torque plates - Price reduc

Postby neptronix » Sat Mar 31, 2012 8:52 pm

The surly fork is fantastic for a steel fork. Basically no flex to worry about even with a 203mm front disc, and steel will dampen out the nasty stuff on the road a tad too. Very tough :)

I'd be fine keeping it, to be honest :). You'd be better off on a suspension fork on a hardtail anyhow.

It's expensive to take a frame and turn it into a bike if you don't have parts already lying around. I ended up with so many spare parts because i bought various things over time while experimenting to get the setup just right. I also parted out some bikes. It's hard to say. Buy the stuff new and you're looking at $300. Part out a used bike or buy new and you may spend $100 - $200.

This frame is made out of a very tough aluminum compound and is generally regarded as bombproof. A fat rear tire and suspension seat will really help even out the nasty stuff in the pavement. But i've got potholes all over, curbs that suddenly drop off ( not exactly ADA compliant ), etc so hardtail just isn't for me anymore.

If you're gonna cut up a bike and try to weld it into a poor man's dual suspension, spare this frame and get something steel to work with. You'll probably have much greater results.

coldfusion594 wrote:Im interested in building a bike from scratch... is the fork you speak of actually good?

I may be interested in the frame because Trek makes a beastly frame, does anyone know of anyone that converted a hard tail into a full suspension bike? I am entertaining that thought because it may be cheaper :wink:

Another question, how much more money would have to be put in to make it an actual bike? in terms of tires, brakes, calipers etc.
just a ball park estimate at best.
ES facebook group: http://facebook.com/#!/home.php?sk=group_125035107565566&ap=1

The all-arounder: 8T MAC motor on a Trek 4500.
The girlfriend bike: 350W front MAC on a 700c Trek.
The wheelie machine: 20" Rear Magic Pie II on a Trek 4300 MTB
The Bus: ??? on a 'da bomb' cargo bike frame

Pro-tips for noobs: Avoid BMS Battery like the plague | Charge RC Lipos to 4.15v, stop discharging at 3.5-3.6v | Use torque plates/arms! | Rear mounted hubs are always best
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Re: 19" Trek 4300 frame w/custom torque plates - Price reduc

Postby o00scorpion00o » Sun Apr 01, 2012 12:48 pm

That poor old trek served you well and gave you many electric smiles of E-Biking!

May she find a good home! :mrgreen:
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Re: 19" Trek 4300 frame w/custom torque plates - Price reduc

Postby coldfusion594 » Sun Apr 01, 2012 9:00 pm

neptronix wrote:
If you're gonna cut up a bike and try to weld it into a poor man's dual suspension, spare this frame and get something steel to work with. You'll probably have much greater results.



Baha, I figured as much. Thanks for not being "That guy" who would have been happy to sell me the frame no knowing what I was really getting into.
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Re: 19" Trek 4300 frame w/custom torque plates - Price reduc

Postby neptronix » Sun Apr 01, 2012 10:07 pm

o00scorpion00o wrote:That poor old trek served you well and gave you many electric smiles of E-Biking!

May she find a good home! :mrgreen:


Thanks :)

And coldfusion, no prob. Even if you did manage to convert it to a dual suspender, you'd have to deal with me constantly begging you to buy it back... :lol: .

People are selling these for $50-$100 elsewhere. If i didn't shave off the vbrake bosses and front derailleur cable to fit the 18FET behind the tire, i'd prolly have this sold on the local market already :cry:

After eating the cost of having the torque plates ( which are still in perfect condition other than installation marks ), i'm basically selling this frame for $10.

Bit surprised that nobody has even made an offer. I guess i will take it off the market. I need the headset for another project anyway.
ES facebook group: http://facebook.com/#!/home.php?sk=group_125035107565566&ap=1

The all-arounder: 8T MAC motor on a Trek 4500.
The girlfriend bike: 350W front MAC on a 700c Trek.
The wheelie machine: 20" Rear Magic Pie II on a Trek 4300 MTB
The Bus: ??? on a 'da bomb' cargo bike frame

Pro-tips for noobs: Avoid BMS Battery like the plague | Charge RC Lipos to 4.15v, stop discharging at 3.5-3.6v | Use torque plates/arms! | Rear mounted hubs are always best
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Re: 19" Trek 4300 frame w/custom torque plates - Price reduc

Postby coldfusion594 » Mon Apr 02, 2012 7:45 pm

Thanks dude, I appreciate your honesty. I am finding that people on here are actually honest about everything they sell... No one leaves anything out, kinda like carfax for the E-bike world :P
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Re: 19" Trek 4300 frame w/custom torque plates - Price reduc

Postby cal3thousand » Fri Apr 27, 2012 12:23 pm

Looks like there are no disc tabs on it right?
#1: Diamondback Menona 700c (Commuter)
M/C: e-BikeKit geared rear w/BB7 with 12FET 40A Infineon ebikes.ca
GM 48V LiFePO4 10Ah racked; moving to 12S Turnigy 10Ah framed
+ Speedict, XC30TK disc, Alex Adventurer 700c Disc, Tektro 180mm hyd. with 42mm Kenda Urban


#2: Norco VPS Six DH (Fun) WIP
M/C: Clyte HT3525 (Thanks Meth!!!) http://Methtek.com with Lyen 18FET 24S Regen
Battery: 24S Turnigy 10Ah frame (ABS)

#3: Wifey Bike, Giant eSuede fully customized WIP
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Re: 19" Trek 4300 frame w/custom torque plates - Price reduc

Postby neptronix » Sat Apr 28, 2012 12:08 pm

It does - this particular era of Treks and Gary Fishers came with an adapter that you hook up to the dropout section to give you disc brake capability. I was throwing this adapter in when it was up for sale.

Coincidentally, look at the torque plates. This adapter design brings 2 very strong bolt holes down closer to the dropout, versus most bikes, where they have their strong bolt holes up top.

I would not consider another hardtail for an ebike build :). If you are still on the market for a bike / frame, these are just perfect for eBikes in every way and i say go get one :)

Later on i may have my black 21" frame up for sale. Has torque plates, but they aren't as pretty. Not scratched up, has the vbrake bosses, and is generally in perfect condition. Otherwise good luck. I managed to fit a 2.75 wide scooter tire on it, so i'm not letting this frame go ;)

Image
ES facebook group: http://facebook.com/#!/home.php?sk=group_125035107565566&ap=1

The all-arounder: 8T MAC motor on a Trek 4500.
The girlfriend bike: 350W front MAC on a 700c Trek.
The wheelie machine: 20" Rear Magic Pie II on a Trek 4300 MTB
The Bus: ??? on a 'da bomb' cargo bike frame

Pro-tips for noobs: Avoid BMS Battery like the plague | Charge RC Lipos to 4.15v, stop discharging at 3.5-3.6v | Use torque plates/arms! | Rear mounted hubs are always best
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Re: 19" Trek 4300 frame w/custom torque plates - Price reduc

Postby o00scorpion00o » Sat Apr 28, 2012 12:36 pm

That's looking good, Pity you couldn't run the pie with the covers off :D

So the Trek frame lives on, that's good really with all she has been through! :lol:

Got my mac back running today, so I'm happy, new clutch! wooooha :mrgreen:
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