On 01/02/12 13:48, Dark Helmet wrote:
On Wed, 01 Feb 2012 09:03:42 +1100,
wrote:
I got curious and bought:
. a 32 hole Miche Primato road hub pair.
. a Kinlin XR-300 24 hole rim.
. some DT Competition spokes and nipples.
That came to $170 AUD.
I drew the lacing pattern using a CAD program. 3x on the drive side
with 16 spokes, and 1x (well kinda) on the non drive side with 8 spokes.
The CAD program allowed me to measure the spoke length in 2D, and I
accounted for the hub flange offset to get the real spoke length. It
turned out I've calculated the lengths about 1mm too long, but that's
not an issue on such a deep aero profile rim, and better than being too
short.
I assembled the wheel over the weekend. It went together easily enough.
Stupidly I'd swapped the quantities of left and right spokes in the
order, so after noticing this was relieved to find exactly the right
spokes that I needed to complete the build in my box of spares!
I don't have a wheel truing jig at home, so did my best with an old
frame and some patience and cunning. I reckon it's within 0.5mm
deviation from true in all respects.
Test ride last night. 60 km with some lumps and bumps, but nothing too
savage. The wheel is nice and round still when I got home. It tracked
well over the uneven ground, so Trevor will be pleased.
I guess the test will be if it can survive a few years of abuse! Only
time will tell.
http://www.flickr.com/photos/5510267...in/photostream
I think it weighs about the same as my Ksyrium rear wheel, but more aero
I'd guess, and a lot cheaper.
The NDS spokes feel almost as tight as the DS spokes.
60k and you are talking about years of longevity? I usually do close
to 60k a DAY from mid-march to mid-november. That's not all that far,
and my city streets are like exploded mine fields with potholes and
pothole rubble.
The days of 20,000km per annum are long behind me. These days I manage
between 10,000 and 11,000 km annually. My front Mavic OpenPro Ceramic
has been in use for over 10 years, and shows no signs of fatigue or
wear. I haven't been so lucky with rear wheels. I seem to hit one too
many bumps, or have a crash in a race and ding the rim so it gets
retired before reaching the 100,000 km mark.
Report back on how well it works after several months and several
thousand miles and then all can help you be a judge on its success.
If it survives a few years of training and racing, I'll be happy.
--
JS.