Thorn Cycles Forum
Technical => Wheels, Tyres and Brakes => Topic started by: mickeg on October 20, 2017, 04:45:25 pm
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I was unaware of this rim. Is it new?
http://www.ryde.nl/andra-35
Interesting that they say (I added bold for emphasis):
Andra 35
Heavy loads, bad roads or no roads at all are the worst conditions, the Andra rims can take it all. That means that your commuter or touring bike wheels will not suffer from years of use. The wider Andra 35 will still fit between the rim brakes, but offers better support for wider tyres. The internal measurement of 22 millimetres is perfect for the use of tyres up to 50 mm.
Yet, they also say (emphasis added):
OPTIMUM TYRE WIDTH (MM) 37-62
Which I find a bit confusing. I suspect the text is from the design staff, the claim for up to 62 is from marketing staff.
I have commented before that my prefered tire width to rim inner width chart is near the bottom of the page at:
http://www.sheldonbrown.com/tire-sizing.html
That chart puts the ideal tire width for the Andra 35 at high 30s to 50mm, which would conform to their text statement for upper width. And Andra 30 on that chart is at a suggested tire width of 28 to 44mm.
The Andra 35 are not quite as wide as I would like for my 57mm tires, but Dave from the shop suggested that the Andra 40 were not as strong as the Andra 30 where the spoke holes are in a previous post.
I wonder if the Andra 35 would allow me to drop the pressure in my 57mm tires as much as I would like in difficult terrain? I have had to keep my tire pressure pretty high in the Andra 30 to prevent the tire from being too floppy. Or, would the Andra 35 still be too narrow for my desired use?
And, I wonder how much a pair of Andra 35 with CSS, both 36 hole, one drilled for Rohloff would cost with shipping to USA? (Yes, I am aware that CSS on front and rear is not recommended.) Hmmmmmm.
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The Andra 35 are not quite as wide as I would like for my 57mm tires, but Dave from the shop suggested that the Andra 40 were not as strong as the Andra 30 where the spoke holes are in a previous post.
My personal take on this would be to prefer the best rim width for the tyres.
The Andra 40 spoke holes might be not quite as strong as those on Andra 30 rims, but I reckon they should still build into a strong wheel, probably better than some of the various other rim models I have used without spoke hole issues over the past 40 years or so.
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What is the difference between these rims (Andra 30 / 40) about their spoke hole ?
I bought specially the Andra 40 to get strong rims in agreement with my tires ::)