(...snipped off most of the posting #23 essay whose link I sent to Schwalbe the other day )
(snip)...In this real world, however, Schwalbe, despite its penchant for thick, roadroof tires, has nonetheless a cadre of engineers who are like you. Engineers who dream for the pleasure of a bike that seems to nearly pedal itself on level roads in still air.
The ball bearings of a bicycle were perfected as they are today at their basis by the 1870s. The tire philosophies of today were perfected in relatively recent years although these glimmerings were well understood by the creator of
the Palmer tire, for example, in the very early 1890s, that less substance is more performing.
The Schwalbe LiteSkin methodology (as today's brand name example) presents a relatively ideal pedaling experience we will not likely ever see in mainstream practice because it is too delicate against
the real world of abrasions.
Andrew Batchelar xxx@schwalbetires.com via smtpcorp.com
5:02 PM (22 hours ago)
to me
Hi Reid,
Thanks for the link! Looks like you’re having fun experimenting with the capabilities of the Big Ones. Those tires are designed to be set up tubeless (the bead-core material is the most important aspect of this), but because they are ‘paper thin’ and have lots of inherent porosity we don’t advertise or market them as specifically tubeless compatible.
You are correct about one interesting thing, so far as our testing shows the Big One/G-One Speed 60-622 Liteskin when setup tubeless has the lowest rolling resistance of any bicycle tire ever made… which is quite a claim to fame (even if I’m the one saying it!).
Another thing to be aware of though, the Snakeskin TLE version of this tire only creates 2 watts more rolling resistance than the Liteskin version… which is actually significantly more impressive because it uses a 67 thread casing (per layer, so is a 201 thread by Vittoria’s way of measuring). The 67 thread casing is in a different universe of Cut protection and air-tightness (the casing strands are almost twice as thick). The casing is less ‘supple’ feeling but I wouldn’t say it feels like a lot of difference.
You have indeed stumbled a bit of a goldmine in terms of rolling speed and ride comfort though, and in fact I use the Big One on 30mm wide (internal) American Classic rims in which the tire measures out to a healthy 64mm in width (about 2.55’’!).
The aerodynamic penalty of these tires IS actually massive. From 20mph-30mph the drag they create well and truly exceeds the benefits of their ridiculously low rolling resistance (at 30mph by a factor of nearly double!)… with that said you have an incredibly smooth ride.
So far as ‘real’ answer about what the fastest possible real world tire is when aerodynamics, and rolling resistance is taken in to account I can’t actually give you one! That is a dynamic relationship between rider weight, power output, rim width, rim aero, frame aero (and the list goes on and one). Suffice to say for a rider that creates a LOT of power and can get in to a very aerodynamic riding position then a narrower tire is faster (because at 30mph the Aerodynamics are a much bigger deal than the rolling resistance… if the tires are ‘pretty good’). For a ‘low-power’ rider who can only sustain 12-15mph a tire like the Big One Liteskin is going to give them an extra 1mph or so!
What’s the Ultimate tire in my opinion for your specific E-Bike use?: The 700x55c Marathon Almotion. These tires will deliver 90% of what you get from the Liteskin Big One… but are able to take a tonne of abuse while being air tight right out of the box.
Kind regards
Andrew Batchelar | Sponsorship / Customer Support
SCHWALBE North America
USA | Canada
1-888-700-5860 | 250-598-0397 ext: 106
xxx[email protected]
schwalbetires.com
This email and any accompanying documents contain privileged and confidential information and are intended solely for the recipient. If you are not the intended recipient of this message, or if this message has been addressed to you in error, please immediately reply to the sender by reply e-mail or by phone and then delete this message, including any attachment. Any dissemination, distribution or other use of the contents of this message by anyone other than the intended recipient is strictly prohibited.
From: Erik Swinburnson
Sent: May-27-18 7:12 AM
To: Andrew Batchelar
Subject: Fwd: an essay for Schwalbe marketing and engineering departments
Sent from my iPhone
Begin forwarded message:
Date: May 27, 2018 at 6:12:38 AM PDT
To: Cesty
Subject: an essay for Schwalbe marketing and engineering departments
Reply-To: Welch
Submitted on Sunday, May 27, 2018 - 06:12
Submitted by anonymous user: 107.211.88.23
Submitted values are:
First Name: Reid
Last Name: Welch
Your State or Province: Florida
Phone:
Your email address:
Subject: an essay for Schwalbe marketing and engineering departments
File upload:
The results of this submission may be viewed at:
(Link Removed - No Longer Exists)
Andrew Batchelar via smtpcorp.com
12:07 PM (3 hours ago)
to me
Hi Reid,
No problem at all! and be my guest with the copy paste.
Kind regards
Andrew Batchelar | Sponsorship / Customer Support
SCHWALBE North America
USA | Canada
1-888-700-5860 | 250-598-0397 ext: 106
This email and any accompanying documents contain privileged and confidential information and are intended solely for the recipient. If you are not the intended recipient of this message, or if this message has been addressed to you in error, please immediately reply to the sender by reply e-mail or by phone and then delete this message, including any attachment. Any dissemination, distribution or other use of the contents of this message by anyone other than the intended recipient is strictly prohibited.
From: Reid Welch [mailto:]
Sent: May-29-18 5:39 AM
To: Andrew Batchelar
Subject: Re: an essay for Schwalbe marketing and engineering departments
Hi Andrew. That is a great response and so educational, thank you!
Can it be shared to the forum in copy and paste form?
Your candor, experience, advice is all so appreciated here.
I know the forum would rock to your letter's information and many new fans created.
Cheers and warmest regards,
Reid