Is there any plan in Rule 28 to make your long sleeve aero jersey in summer fabric? The market is a bit slim on light weight long sleeve jerseys for those that want better sun protection.
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Hard to gauge appetite. What I’d recommend is a set of our aero arm warmers in white. It’s the same fabric as our new short sleeve aero jersey
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@Rule28 thank you for being open and discussing. I am glad I have bought your product since i enjoy this type of discussion. Thank you
Outlier Long Sleeve Jersey | Men’s | Rule 28
this exists - but yes, I’m also for more long sleeved options with spf50+ uv protection. Especially light colors for summer riding.
Worse than black? Japan study on heat-beating shirt colors reveals infrared absorbers - The Mainichi
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Yes, I have the arm sleeves. With those, they end up doubling fabric in the upper arm which is not ideal. Also, I have the Rule 28 sleeves in Large and even at 157 lbs, they are still a fair amount too small.
There’s a recent thread on the forum about arm sleeves and some comments about limited options to lightweight long sleeve with spf prediction. Would be worth looking into the market options - it may be a good seller.
between an flo bikes podcast with a guy talking about thermoregulation and this picture I’ve been loading up on white or at least light colored jerseys of all sorts, not to mention my most recent helmet purchase of a white s-works prevail. Not a bad thing for visibility either. When I choose to drop the funds on some Rule28 stuff it’ll definitely be at least a white fancy jersey or the fancy onepiece suit with a white top.
You basically have a cooler insulating your head…any increased surface temp from a black or dark color helmet is never going to reach you.
No one has ever been able to demonstrate higher internal helmet temps, let alone higher core body temps, by using a dark helmet.
But perception is reality and if you think it will keep you cooler, rock the white lid!
No doubt, but that’s also why i picked the prevail. For one, it fit me better than a POC ventral air which was also in contention for a summer high-vent helmet. That might have been the biggest deciding factor. But along with the aforementioned visibility and good ol’ matchy-matchy with the white jerseys the thing is nigh close to an open air helmet, at least by the look. Whether this works better than helmets with holes that pull air through which I feel has a point at which one can be moving too slow for the air to move and effectively cool remains to be seen/felt. I get the feeling it’ll work well when I’m going hideously slow up the steep stuff in the depths of summer. And if the white shell does more than nothing even better. About time some youtube content creator do something with a bunch of colored helmets, a temperature sensor for inside and a FLiR camera. And maybe a fan for testing that air movement thing.
No doubt…I would love to get one, but since I’m bald, the tan lines would be horrendous. 
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I‘m considering to combine my Rule28 aero socks with calf guards for my MTB/gravel race this weekend (2h, avg speed 26km/h). Do the calf guards make a significant difference?
This way when you endo, you fly farther!
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I try to maintain ground contact all the time. Some would call it a gravel course.
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Is there a secret to keep the socks from sliding down your calf?
These are brand new. I haven‘t tried them yet. I may consider to use some hair spray on the legs.
Please wash the grippers before use. This needs to be done to remove the protective coating from them. This is added to stop the grippers binding during production. Without washing it off the gripper isn’t grippy.
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There is advantage to more surface coverage although the bulk of the benefit we’ve seen comes from the sock length, going higher won’t double the savings.
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After getting an email from Darevie (a budget Chinese direct brand) about their race suit and Galibier making a similar-priced one, I started thinking about what sort of difference you’d see between cheap (relatively) suits and really quite expensive ones.
I’d presume the effect would be something like:
normal jersey £ → aero brand jersey £££ → budget suit ££ → posh suit ££££
But it could be that posh jerseys are more tested and refined than budget suits, so you see more gains with an expensive jersey over a non-aero brand full suit. I know jerseys from the aero brands can be more than the entire suit, but the price doesn’t always reflect performance.
The difference really is that, to some degree at least, companies like Darevie don’t really know what they are doing. They are just copying the work of companies like Rule28, without necessarily understanding the work that produced the good.
So it raises the question of whether they actually get it “right”. @Rule28 has mentioned several times that there are many nuances that can significantly impact test results. So does Darevie take those nuances into account?
Based on my limited experience with Darevie, I question it. I ordered one of the aero baselayers / “bras” from them. Given that most Chinese brands tend to size small, I ordered a Sm and a Med. At 5’9” / 175cm, even the Small was a bit big and the Med was laughably big.
So if they can’t get sizing right, are they getting aero right?
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That was exactly my thinking and why, despite liking the pattern on Darevie jerseys, I haven’t ordered any since returns aren’t as easy. Socks are all I’d order really for somewhere that isn’t easy to deal with, although the small aero bra does fit me ok (not a phrase I expected to be saying today!).
Galibier is a Euro brand and is consistent in sizing/QC from my experience and is more budget-priced (although not China cheap) so I guess I should have used them as an example! Their suit is less than a Rule28 top but I doubt has gone through all the testing to prove and refine it.
Would be interesting to get it tested with and without an aero base layer to see if you could get most of the performance - which if I’m being honest would prob be enough for my talent level. Although I appreciate it’s prob not the done thing to comment on other brands directly hense the generic “budget” suit comment.
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It’s hard to categorically rank them. Performance of clothing can come from a few different areas. I’ll summarise these into:
Materials (fabric choice drag crisis point, air permeability, fibre composition etc. )
Fit (fabric tension, fabric orientation, panel placement, seam placement & type etc.)
Generally there is a universal better or worse for materials - for a target speed, but fit can depend a lot on the end user. It’s why you can get some suits working better on some people than others. Socks, being simpler are more determined by materials but some fit issues still impact choice.
So, a well fitted aero jersey with the best materials could perform v close to a suit on some, but on another rider with a different shape, a suit that fits better with worse materials could be fastest. There is an issue that a jersey will always move and wrinkle over time whereas a suit is kept taught.
Hopefully this makes sense, but it’s one of the many answers in aerodynamics that basically boils down to “it depends…”
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