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Old 03-19-12, 04:03 PM   #1
CrazyLemurBoy
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Rack for 120 mm OLD hub

Hello All,

I have 5 speed wheel spaced 120mm O.L.D. and 5 mm thick dropouts. This gives me 130mm between each outside face of the drop out. Most racks are spaced 160 mm apart. I have considered spacers, but Wayne at the Touring Store did not recommend this approach. From an engineering standpoint I can see why. Anyone know of any narrow spaced racks? I would like to avoid bending to extreme angles.
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Old 03-19-12, 04:13 PM   #2
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Scour ebay/lbs for old racks. Buy an old bike with an old rack.

I'd simply take any rack, which usually measure 145-150mm inside and bend them a bit to accommodate your 130mm spacing. Or find/make some 5mm standoffs and use them plus a little bending - this would be identical to how every rack in the world is bent when installed.

Fenders and racks are almost always custom installations requiring some amount of mental and metal flexibility in order to succeed.

Tubus diagram indicates a 30mm range (150-180 allowed) the user can bend their racks to in order to fit. Of course, the Cargo is steel, but Al can also tolerate some bending.

http://www.tubus.com/documents/13236...Classic_BM.pdf

Last edited by seeker333; 03-19-12 at 04:30 PM.
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Old 03-19-12, 04:46 PM   #3
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I bend my racks to fit all the time, as long as you don't kink/crack the metal it should be fine. A solid rod rack will probably take the abuse better than a tube rack.

Aaron
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Old 03-19-12, 04:57 PM   #4
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You can always just use a couple tube stand off spacers, and longer bolts.
if you have qualms about squeezing the rack legs together..

8.8 steel bolts will be stronger than the stainless sort. particularly when levered on

CLB, what kind of engineer did you say you were? sanitary?

a old fashioned Plietcher cast rack with the spring-clip stands on 2 struts ,
riveted to the rack, those are even period correct for old 3 speed bikes.

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Old 03-19-12, 05:03 PM   #5
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You can always just use a couple tube stand off spacers, and longer bolts.
if you have qualms about squeezing the rack legs together..

8.8 steel bolts will be stronger than the stainless sort.

CLB, what kind of engineer did you say you were? sanitary?
Mechanical. I am not asking for bending solutions, I am asking about racks designed to fulfill this need. I am glad people on this forum are so nice to each other.
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Old 03-19-12, 05:59 PM   #6
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Mechanical. I am not asking for bending solutions, I am asking about racks designed to fulfill this need. I am glad people on this forum are so nice to each other.
120mm OLD is basically obsolete in today's bicycle world, bend a rack or hunt for something that may not exist any more. I have never, ever ordered a rack to fit my OLD, I order the rack and make it fit. The ONLY time I worry about OLD is when fitting a hub, somethings don't need to be over thought or made more complicated than they are.

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Old 03-19-12, 06:05 PM   #7
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somethings don't need to be over thought or made more complicated than they are
+1
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Old 03-19-12, 09:15 PM   #8
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CLB, I've mounted aluminum tubed racks on bikes with 120 to 145 mm OLD and all took a little spreading or compressing to mate with the dropout, no tube bending. The only 'spacers' I've used were a pair of presta valve nuts between the rack's leg and the drop out to clear the replaceable RD hanger's mounting screws on one bike.

Brad
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Old 03-19-12, 10:15 PM   #9
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Try finding one of the older Blackburn racks. I have used them on 1970 era 5 speed bikes without a problem. I'm not sure, but I believe they have 126mm dropout spacing 3mm on each side is not an issue. Most "modern" racks have to be "sprung" in a little to fit.

Aluminum racks are a little more forgiving when fitting than tubular chrome-moly

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