So the general wisdom on this site says “don’t bother with tubulars… clinchers are just as good these days.”
But when I go to Hed’s aerodynamics page and compare stingers to jets, the stingers have massively lower drag from yaw angles 10 - 17. For the stinger/jet 9 it shows a gap of 170 grams at 15 degrees. !!??
What the heck? What am I missing? The stinger 9 graph looks more like the stinger disc than the Jet 9.
Even for the Zipp wheels the tubular version is faster.
For hed, yes the Jets are a vastly different construction, the way the spokes enter and the flat brake track hurt it relative to the stingers. However it is unknown how much the difference is if you put a 19-21mm tire on the Jet, which you cannot do with the stinger (22mm is minimum size allowed under warranty)
I own both a Jet9 and a Stinger9 and I get my panties all in a wad on low-wind days about which to use. Jet9 with a 19mm tire or Stinger9 with a 23mm tire? hell if I know! =)
For Zipps, since Firecrest, there is no aerodynamic difference clincher, or tubular, and you can run narrow tires on both.
So the general wisdom on this site says “don’t bother with tubulars… clinchers are just as good these days.”
But when I go to Hed’s aerodynamics page and compare stingers to jets, the stingers have massively lower drag from yaw angles 10 - 17. For the stinger/jet 9 it shows a gap of 170 grams at 15 degrees. !!??
What the heck? The stinger 9 graph looks more like the stinger disc than the Jet 9.
Even for the Zipp wheels the tubular version is faster.
So the general wisdom on this site says “don’t bother with tubulars… clinchers are just as good these days.”
But when I go to Hed’s aerodynamics page and compare stingers to jets, the stingers have massively lower drag from yaw angles 10 - 17. For the stinger/jet 9 it shows a gap of 170 grams at 15 degrees. !!??
What the heck? What am I missing? The stinger 9 graph looks more like the stinger disc than the Jet 9.
Who knows? Heck, we have a hard time getting the details on all the “running changes” they’ve made to their wheels over the last few years, so I wouldn’t be too confident in thinking it’s an “apples to apples” comparison they’ve got up there…
Even for the Zipp wheels the tubular version is faster.
Not so anymore with the Firecrest models.
Thanks guys. that difference at 15 degrees is MASSIVE though. I’m still kind of shocked.
Any links to the zipp data? I seem to be incapable of finding it.
Thanks guys. that difference at 15 degrees is MASSIVE though. I’m still kind of shocked.
I did use a stinger9 front instead of a jet9 front in a road race recently, and I did finish 2nd, which is a huge improvement from my usual getting dropped.
(there were other variables involved though, like not running anymore)
"Who knows? Heck, we have a hard time getting the details on all the “running changes” they’ve made to their wheels over the last few years, so I wouldn’t be too confident in thinking it’s an “apples to apples” comparison they’ve got up there… "
Thats a fair criticism, but to be fair Zipp wasn’t particularly upfront about the differences in the aero performance between clinchers and tubulars prior to the FC models. Most of their prior data didn’t even specify which was tested.