Any STrs riding the sixnine setup?
I am pulling the trigger soon and dont know what tires to buy. I prefer tubeless but heard latex tubes and Continental 5000 23 front 25 back is the optimal setup. Any knowledge of the new Conti 5000TR?
Really want a fast tire that is less puncture prone otherwise I know the corsa speeds are the way to go
I think 23/25 was the guideline for GP4k which was a larger tire.
My wife has the Jet Black 6/9 which I’ve been borrowing for the past few thousand km. GP5K 23 in the front and GP4k 25 in the back because we had those tires sitting around when the old set wore out. The GP5k in 23mm is tiny. I’d just run 25 front and rear.
No data/perspective on the new 5000 TR. For the tubed versions a 23c 4000s II on the front is the fastest IIRC (slower rolling, but more aero), coupled with a 25c 5000 on the rear.
Andy Tetmeyer, HED rep who frequently posts here, recently posted that the Continental GP 5000 23mm/25mm is their recommended best combo. Before that, it was the Attack/Force. However, that post predates the introduction of the new GP5K hookless tubeless.
**I think 23/25 was the guideline for GP4k which was a larger tire. **
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Are you sure you don’t have that backwards? I was positive it was the 5000 that measured wider by 1-2mm.
I have the same wheelset, Jet blacks 6/9, and went with the 23mm 5000’s front and back, with the understanding they’d be a little wider than the 4000 23’s. And latex tubes of course.
Guessing a 25mm in either tire will be more comfortable on the rear, but thought the the 23 was a better width match to the wheel.
Maybe Andy will chime in.
EDIT - never mind, looks like you are right according to what I see online, GP4000 is measured 1mm wider. For some reason I thought I read a while back it was the opposite…
Tubed on my 9+ front I’m using a 23mm Michelin TT with latex. As I wasn’t going tubeless as my rear disc can’t take tubeless apparently.
I’ve asked and never got a straight answer why the older HED disc that’s the C2 width with a Belgium under the skin was so different than the newer width Belgium under the skin of the “plus” discs for going tubeless.
Either way for next year I’ll probably buy a tubeless rear disc and convert the raceday 9+/disc combo to the newer GP5000. Then keep my 6+ setup for training. Don’t care to fight roadside in training with a road tubeless setup.
Tubed on my 9+ front I’m using a 23mm Michelin TT with latex. As I wasn’t going tubeless as my rear disc can’t take tubeless apparently.
I’ve asked and never got a straight answer why the older HED disc that’s the C2 width with a Belgium under the skin was so different than the newer width Belgium under the skin of the “plus” discs for going tubeless.
Either way for next year I’ll probably buy a tubeless rear disc and convert the raceday 9+/disc combo to the newer GP5000. Then keep my 6+ setup for training. Don’t care to fight roadside in training with a road tubeless setup.
Are you not worried about fighting roadside with it during a race?
Tubed on my 9+ front I’m using a 23mm Michelin TT with latex. As I wasn’t going tubeless as my rear disc can’t take tubeless apparently.
I’ve asked and never got a straight answer why the older HED disc that’s the C2 width with a Belgium under the skin was so different than the newer width Belgium under the skin of the “plus” discs for going tubeless.
Either way for next year I’ll probably buy a tubeless rear disc and convert the raceday 9+/disc combo to the newer GP5000. Then keep my 6+ setup for training. Don’t care to fight roadside in training with a road tubeless setup.
Are you not worried about fighting roadside with it during a race?
Time trial flat, race is over. So doesn’t matter. I don’t do tri where fixing a flat in 5min can save the day. They send a car by after waves to check for mechanicals. TT ruined and hitch ride back to start. Or teammate come retrieve me.
I run 23mm gp5000’s with latex tubes. They measure out right around 25mm after a few miles. Pretty much perfect width for the Hed rim. I would probably run a 25mm on the rear if you have that rear wheel tucked in close to the frame (cut out) because comfort will be a little better if you run it at a lower pressure.
edit: Hed has recommended tire widths on their website…still 23mm front for all. Makes sense since I assume external rim width at the “tire bead area” likely doesn’t change?
Newest Hed Jet’s have 25/28/32mm external rim widths…shouldn’t tire for optimal aero adjust to match?
I’ve seen the YouTube video posted a few responses up. I put on 25s front and rear of the jet plus blacks and like it. I don’t have any idea how much I’m giving up over 20 miles from the 25 over recommended 23 for the front. Not sure I care. It can’t be that much…unless someone else can convince me otherwise.
I hope to switch to latex this spring from butyl. Kinda don’t believe the hype of better ride feel etc. of the switch, and the 7 watt savings per tube…but, we’ll see.
Not sure how helpful to your question, but after having them a year in a box, I am now riding a pair of Jet 6 set up tubeless on and off in training, I have no races scheduled. I have Conti 5000 TL 25 mm front and rear (not the newer Conti tubeless). The wheels are fast and fun, but more rigid for sure than other non-aero wheel sets and I can feel more vibration from the pavement. Since I’m not in a race, I’m not moving to the smaller 23 mm HED recommends if it would actually improve performance. I ride with a spare tube with appropriate stem length, but I also don’t ride without my Dynaplug tubeless plug kit. My experience with these wheels previously is they are very tough to install/remove tires or install tubes without pinching even at home in a garage. If I can’t plug a leak, most likely I will call for help before attempting to put in a tube. There are lengthy threads on ST about this. Some have no problem, others not so.
The AeroCoach testing Is a goldmine of information. The 5000 is a more aero tire than the old 4000 and tubeless is so much more reliable. The 5000 is also narrower than the 4000 and fits well on the Jet +. Also note that I think the 23 will be phased out and it isn’t available for the new tire. If you want a 23, I would grab the tubed version now.
The wheels are fast and fun, but more rigid for sure than other non-aero wheel sets and I can feel more vibration from the pavement.
This is purely in your head. The fairing is non-structural so the ride is the same as a aluminum box-rim that’s below the fairing. The fairing is so thin that they advise you against hanging your 9lbs bike off it.