double rail frame position - Mountain Buzz
 



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Old 03-26-2015   #1
 
Fort Collins, Colorado
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double rail frame position

Should both rails on a double rail frame rest on the tubes?

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Old 03-27-2015   #2
 
Salt Lake City, Utah
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Ideally, yes.
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Old 03-27-2015   #3
 
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Niwot, Colorado
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Quote:
Originally Posted by woodman View Post
Should both rails on a double rail frame rest on the tubes?
And they should rest equidistant from the centerline of the top of the tube so that the pressure from both rails is borne equally on the tube.
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Old 03-28-2015   #4
 
Denver, Colorado
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If you don't have running boards on the top of the frame just make sure you can't slip your foot between the rail and the rails when you are walking the tubes. Otherwise it does't matter.
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Old 03-28-2015   #5
 
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Belgrade, Montana
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what syterm are you using? Many double rail setups actually have cross bars supporting the frame over the tubes. I have a mix of WW machine works and NRS and the WWMW stuff nicely spans the tubes allowing the side rails to rest on either side of boat tubes. But an all NRS or DRE or other fitting based design will also put weight across the tube. WWMW and Cascade's arched (welded frame) truly rest on both sides of tube. There may be others but fitting frames all rely on some sort of cross support that puts at least a few cross bars bearing weight on the boat tubes.
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Old 04-01-2015   #6
 
Fort Collins, Colorado
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The frame is made by rowframes here in Northern, CO. It does have cross bars and they are designed to support the load (I ended up talking to Gary at Rowframes and he explained the design) By the way he is really cool and makes a great inexpensive system. Thanks for the response!
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