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Jeff Wills
human power supergeek

USA
1270 Posts

Posted - 10/28/2015 :  18:13:56  Show Profile  Reply with Quote
quote:
Originally posted by warren





Dang it! Now I want one of these, too. Quit reading my mind, Warren!

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Jeff Wills
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warren
human power expert

USA
6050 Posts

Posted - 10/28/2015 :  18:50:08  Show Profile  Visit warren's Homepage  Reply with Quote
You are one of the few people who would actually fit on it, Jeff.
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Jeff Wills
human power supergeek

USA
1270 Posts

Posted - 10/28/2015 :  19:54:38  Show Profile  Reply with Quote
quote:
Originally posted by warren

You are one of the few people who would actually fit on it, Jeff.




My point exactly. Grrr...

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Jeff Wills
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alevand
human power expert

USA
2872 Posts

Posted - 10/29/2015 :  05:52:52  Show Profile  Visit alevand's Homepage  Reply with Quote
Cool. Thats more like a midracer,with a 16 inch seat height. I'd need pedal blocks. I don't know about the brake clearance notch though, maybe some type of modified linear pull with just a wire over the tire. My vision has cantilever in front with a side pull adapter that mounts on the brake hole.

C:
Tony Levand
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Larry Lem
human power expert

South Sandwich Islands
2523 Posts

Posted - 10/29/2015 :  07:37:38  Show Profile  Reply with Quote
From the first post, I call my bike a midracer. From Warren's initial drawings, he wanted to build a lowracer but ended up with a midracer. The title of the thread remains the title. It could have been riding lawnmower.

Larry Lem
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warren
human power expert

USA
6050 Posts

Posted - 10/29/2015 :  09:05:53  Show Profile  Visit warren's Homepage  Reply with Quote
Larry: You are always the stickler for semantics. I fixed it!

Tony: Yes if I decide to go RWD it wouldn't need quite as large a notch and in either case the frame would be thicker on top of the headtube area to compensate for the notch.

I was initially thinking I could use a drum brake hub up front but that would mean buying / building more wheels. I have plenty of nice wheels already so I will make those work on whatever I build. The first thing I need to do it find a nice CF fork. I could cut it up to widen it for FWD or just go RWD. What is more Aero? Decisions...

Looks like Pete Heal is building a dual 650C CF midracer now, so it will be interesting to see how his build goes.

Edited by - warren on 10/29/2015 09:06:15
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alevand
human power expert

USA
2872 Posts

Posted - 10/29/2015 :  09:25:42  Show Profile  Visit alevand's Homepage  Reply with Quote
I am sure a front rim brake could be worked out so ut doesn't need a notch. I have a curved round aluminum tube you could use as a mandrel.

C:
Tony Levand
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Speedbiker
human power expert

USA
3702 Posts

Posted - 10/29/2015 :  10:17:17  Show Profile  Reply with Quote
Warren, maybe you could find one of those Fuji or Giant tt forks with the little aero V brakes mounted smoothly into the back of the fork. They have been out for quite awhile. Also, since it is carbon, you could swoop a little fairing off the bottom of the frame to fair the back wheel, like on our NoComs.
I figured out the speed secret of that back wheel. The carefully designed shape pushes the boundry layer outward far enough to act like a tailfairing!
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Larry Lem
human power expert

South Sandwich Islands
2523 Posts

Posted - 10/29/2015 :  12:39:19  Show Profile  Reply with Quote
I finally successfully added a front brake to my bike. It's a Tektro TTV I bought on eBay. I had to weld non-std bosses on the front of the fork. The cable runs along the non-drive side.

It's a poor brake design. Plastic bits are fragile and I had to cut a metric coupler nut in half and use those as the bosses (I think M8 bolts act as the pivots.). Goofy. But the brake works pretty well.

Larry Lem

Edited by - Larry Lem on 10/29/2015 12:39:51
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warren
human power expert

USA
6050 Posts

Posted - 10/29/2015 :  13:54:12  Show Profile  Visit warren's Homepage  Reply with Quote
I'll probably get something like this: http://www.ebay.com/itm/Tapered-full-Carbon-road-Fork-fit-TT-Time-Trial-Triathlon1-1-8to1-5-length-30-48-/111784994974?hash=item1a06e7a89e:g:OcwAAMXQ1ZhTjL4C

I have one similar to that on my CF highracer and it worked nicely. I'll be able to use the internal bearings with this one (like the nocom) so that should help the stack height.

You caught me Thom, now everybody will want one.
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Larry Lem
human power expert

South Sandwich Islands
2523 Posts

Posted - 10/29/2015 :  19:29:19  Show Profile  Reply with Quote
eBay link doesn't work

Larry Lem
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Speedbiker
human power expert

USA
3702 Posts

Posted - 10/29/2015 :  19:49:05  Show Profile  Reply with Quote
It did for me. California is blocked.
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Jackrabbit Jimmy
recumbent enthusiast

Canada
290 Posts

Posted - 10/30/2015 :  02:13:40  Show Profile  Reply with Quote
quote:
Originally posted by warren

I'll probably get something like this: http://www.ebay.com/itm/Tapered-full-Carbon-road-Fork-fit-TT-Time-Trial-Triathlon1-1-8to1-5-length-30-48-/111784994974?hash=item1a06e7a89e:g:OcwAAMXQ1ZhTjL4C

I have one similar to that on my CF highracer and it worked nicely. I'll be able to use the internal bearings with this one (like the nocom) so that should help the stack height.




Warren, I know you said "something like this" so the one shown on the link isn't necessarily the one you would buy. The one shown has a tapered steerer tube. You would have to mix and match the headset bits and pieces and your frame would have to accommodate the 1.5" diameter of the base of the steerer tube. The price is very attractive and the weight of the fork would indicate it is likely pretty durable.

Jackrabbit Jimmy
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alevand
human power expert

USA
2872 Posts

Posted - 10/30/2015 :  04:46:49  Show Profile  Visit alevand's Homepage  Reply with Quote
These brakes are perfect..."hidden brakes".





http://www.niagaracycle.com/categories/tektro-926a-mini-l-pull-brake-black?gclid=CNno4MiQ6sgCFVI7gQod1g4PBg

C:
Tony Levand

Edited by - alevand on 10/30/2015 04:50:57
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warren
human power expert

USA
6050 Posts

Posted - 10/30/2015 :  05:40:10  Show Profile  Visit warren's Homepage  Reply with Quote
Wow, that's pretty cool!
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Speedbiker
human power expert

USA
3702 Posts

Posted - 10/30/2015 :  06:24:22  Show Profile  Reply with Quote
That is exactly what I was talking about in that earlier post. Several companies have versions of it. I figured since yiu went to the Bong you would have seen them.
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Larry Lem
human power expert

South Sandwich Islands
2523 Posts

Posted - 10/30/2015 :  07:55:18  Show Profile  Reply with Quote
The brakes in Tony's photo are smaller than Tektro Mini-Vs shown in the Niagra bikes link. The Mini-Vs still have the horizontal piece that mates with a 90 degree bend noodle, so it can't get too close to the clamping side. And Mini-Vs are only made with the cables coming down from the "wrong side" if used at the front of the fork.

(I have a Mini-V on the rear of the dual 650c because of the cable travel / leverage, and a Mini-V on the front of the fork of the Beagle.)

Larry Lem
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alevand
human power expert

USA
2872 Posts

Posted - 10/30/2015 :  09:25:16  Show Profile  Visit alevand's Homepage  Reply with Quote
On the Carp I have the brake on the back of the fork with the noodle pointing forward and a 180 degree loop of cable housing around the head tube to the cable stop on the right side of the frame. To reverse it , you'd have to rivet the noodle holder to the other arm and drill and tap the hole for the cable camp.

C:
Tony Levand

Edited by - alevand on 10/30/2015 09:29:28
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warren
human power expert

USA
6050 Posts

Posted - 10/30/2015 :  09:44:12  Show Profile  Visit warren's Homepage  Reply with Quote
I didn't catch the "tapered" head tube, I'll have to watch for that, thanks.

I usually just modify the V-brakes to move the noodle to the other side. Pop out the noodle carrier and move it to the side with the bolt. They use a pin that is not reuseable so you need to replace it with a small screw and nut. Drill out and tap the hole in the noodle carrier side for the cable clamp bolt.

If I can find a fork with an integrated brake that doesn't cost a fortune I'll use it. I don't think I have the mad skilz (or patience) to build it myself.

Earlier this year I was thinking about building a take-apart CF dual 20" lowracer, but I think this bike would be used more.

Edited by - warren on 10/30/2015 09:51:45
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TVM
recumbent enthusiast

USA
173 Posts

Posted - 10/30/2015 :  10:33:11  Show Profile  Visit TVM's Homepage  Reply with Quote
Hello,
just lurking the used bike ads and saw this.
The MILF next door, (mommy I'd like to FIND a bike for ;-) wants me to find her a LWB.(Bachetta Bella or Rans)

That Giant brake has been discontinued/recalled.
Just installed one on a hand cycle and IMO, it should only be used for a parking brake.
http://www.giant-bicycles.com/en-us/bikes/model/avow.advanced.pro.0/25671/92039/

My TRP rep says they are using the TTV now.

The brake pads are TOO far from the pivot point, drastically reducing leverage!
[URL=http://s363.photobucket.com/user/JohnMorciglio/media/IMAG1185_zpshjwgurxx.jpg.html][/URL]
Can't really tell from this pic, but the pads are was closer to the pivot making this a very strong effective brake.

They replaced the coil spring with a linear (typical V-brake)
spring but the rep says this was strictly for MFG. costs?

Also don't seem to be near as svelte as the TTV;
[URL=http://s363.photobucket.com/user/JohnMorciglio/media/DSC_0233_zps0ns8o82x.jpg.html][/URL]
Mounted on the hand-cycle fork.
Customer wanted to try this combo on another build, (waste of money and LESS aero);
[URL=http://s363.photobucket.com/user/JohnMorciglio/media/Mobile%20Uploads/2015-09/IMAG1296_zpsc2aiim9t.jpg.html][/URL]
[URL=http://s363.photobucket.com/user/JohnMorciglio/media/Mobile%20Uploads/2015-09/IMAG1295_zps07a16ewq.jpg.html][/URL]

This monster contraption was used. (thought I had a shot of it on top with the Giant V mounted below?
(Tri-Rig) it was a 200+ dollar brake?

JM
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warren
human power expert

USA
6050 Posts

Posted - 10/30/2015 :  12:05:16  Show Profile  Visit warren's Homepage  Reply with Quote
What MFG / Model of brake are you using on the M1 in the top pic, John?
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alevand
human power expert

USA
2872 Posts

Posted - 10/30/2015 :  13:01:48  Show Profile  Visit alevand's Homepage  Reply with Quote
quote:
Originally posted by warren

What MFG / Model of brake are you using on the M1 in the top pic, John?


It looks the same as the Giant pictured.

C:
Tony Levand
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TVM
recumbent enthusiast

USA
173 Posts

Posted - 10/30/2015 :  13:59:51  Show Profile  Visit TVM's Homepage  Reply with Quote
http://www.trpbrakes.com/category.php?productid=1164&catid=182&subcat=0

They were OEM only.
It looks like there is a "buy" link now.

I have a dozen with the coil type spring (more popular on cyclo-cross brakes.

$100.00 (shipped to the US) would cover one.
You could easily take an "aero" fork and mount these on the back with an Aluminum adapter.

I would make that part myself, (they are available)
by matching the fork crown, using the normal top mount with the two
(6mm threaded holes at 11 1/8") from center of axle. (51mm width)

Then you could "fair" that in with aero-poxy or thickened adhesive. Was gonna do it on an Apache but I also have a butt-load of these;
http://www.trpbrakes.com/category.php?productid=1160&catid=182&subcat=0

Hope the links work?
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TVM
recumbent enthusiast

USA
173 Posts

Posted - 10/30/2015 :  14:06:48  Show Profile  Visit TVM's Homepage  Reply with Quote
[URL=http://s363.photobucket.com/user/JohnMorciglio/media/IMAG0799_zps8ecc9bcd.jpg.html][/URL]

Like I said, the pads are way closer to the pivot making for an excellent (better than Dura-Ace IMO), brake.
That Giant tt bike shown looks like it has a variation of the same (weak leverage) brake.
They are stamped/mfg'd by TRP.
JM
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Jeff Wills
human power supergeek

USA
1270 Posts

Posted - 10/30/2015 :  20:34:32  Show Profile  Reply with Quote
Hmmm... as long as we're shopping around for forks for Warren, I kind of like the shape of these:
http://www.ebay.com/itm/road-Fork-Trek-Carbon-Fiber-Bladed-Alloy-Sterrer-Integrated-Headset-/271896609897
since they stay skinny most of the way down. It would make a RWD dual-700C bike easier- more room for the chain to pass.

But what do I know? I'm still working on the streamliner.

__________________
Jeff Wills
All my bikes:
http://home.comcast.net/~jeff_wills/Gallery/index.html
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