Recent Posts

1

Technical Resource Discussion / Re: more about engine iol

« Last post by wytfut on June 19, 2026, 08:49:32 AM »

My sincere apologies for such a VERY SLO reply...
I have no excuse, and can't give you an answer why. Maybe my age.....

Anyway.... The Group discovered in the early years that dinosaur oil wasn't going to be able to take the heat. Our bikes then were running as high as 288+ degrees. Oil is designed for 235. A couple of rounds on dinosaur oil, .... well it'd be bad.

So in general is was decided ful synthetic. Mostly 20/50 motorcycle oil (make sure it is motorcycle oil, as automotive doesn't have any zinc). As for brand, I use Amsoil. A lot owners are using Mobil 1, and or other motorcycle oil products.

Do not use any lucas/stp type oil additives. Your clutch will thank you for it. Shifting will get difficult.

Any other questions please ask, and I'll try to monitor more closely.

2

Technical Resource Discussion / Re: more about engine iol

« Last post by 5ehsx on May 24, 2026, 04:19:26 PM »

Gonna check.
Thanks!

3

Technical Resource Discussion / Re: more about engine iol

« Last post by cubralbre on May 24, 2026, 07:42:29 AM »

From what I understand, Mobil 1 Racing 4T 15W-50 is recommended for Harleys in Europe. Not sure if you have access to that.
No expert.........but all recommendations show to use a synthetic, not mineral.
Per the Service in on this website" The company recommends a fully synthetic 20-50w oil, designed for motorcycles. It is mperative to purchase ONLY motorcycle oil for the needed clutch additives."
Nobody had answered yet so just thought I would give it a quick response. The word "recommend" does not mean it would not work.

4

Technical Resource Discussion / more about engine iol

« Last post by 5ehsx on May 22, 2026, 04:35:14 AM »

Hi everyone, I thought I at last solved my problems with a smoky bike using Lucas W50 full synthetic, it seemed not smoking so badly except in very poor condition like long que and higher air temp.
Good things often won't last, so that Lucas oil seems not to be imported in the whole Europe since some months ago.
It's quite difficult to find SAEw50 full synthetic, so I ask if a SAE50 mineral can work with our hot engine bikes...
Thanks anybody for any advice.
/Luca

5

Technical Resource Discussion / Battery - Testing a new Li-ion Chemistry, Lithium Titanate (LTO)

« Last post by Blaumax on May 16, 2026, 04:40:21 PM »

I got tired of replacing lead acid batteries every three years. Admittedly, the bike sits for weeks and sometimes months without a charger or tender attached so I can't blame the chemistry entirely. I've owned 1910 for over two decades so I've seen a few batteries. For the last 8 years I've been following a certain Li-ion chemistry that few have probably heard of. It's not as energy dense as NCA, NMC or LFP so most have likely never heard of it. It's Lithium Titanate Oxide (LTO) and it's easily the most durable of the various ternary and LFP flavors possessing four or five times the charge cycle life and capable of delivering huge amperage even at -20C. While it's not ideal for EV traction batteries it is just may be better than lead acid for many 12V applications. Unfortunately, until recently, it's always been prohibitively expensive. LTO is known for accepting huge C-rates (charge and discharge), having very wide operational temperatures -20C to 60C, and amazing cycle life but with a cell voltage of only 2.4V it was never available in 12V form. I had contemplated building my own 12V battery from six 30Ah LTO cells wired in series. They're available from eBay for about $50 each but after adding the necessary BMS I felt the cost wasn't worth the gamble.
Recently however, new 12V LTO options have become available for around $200 so I gave in and bought one from TYKOOL. It's their LTT20L-BS (or LTT20-BS if you want the orientation of the terminals switched). I've only had it about two months so far but no issues to report. My SuperX now cranks as well as it ever has. I just tried it this morning after letting it sit for nearly 3 weeks and it cranked over like it had been sitting on a tender. I was initially worried about the low 10Ah rating and the resting voltage falling below 12.6V. It will take a 14.5V charge and hold above 13.5V for a few days after turning off the bike but it will slowly settle down to about 12V. Letting it sit for 3 weeks (with several nights falling into the low 40's) didn't seem to affect it one bit though. The voltage seems to settle after a week or two and hold at about 12.0V. I suspect that in order to keep costs down they used cheaper 5Ah cells in a 6S2P arrangement.
Anyway, I'll be the guinea pig for this test. We'll see how it holds up in the heat. I'll update as the Summer goes on.

6

Technical Resource Discussion / Re: Batteries and battery tenders

« Last post by Blaumax on May 16, 2026, 04:36:26 PM »

I got tired of replacing lead acid batteries every three years. Admittedly, the bike sits for weeks and sometimes months without a charger or tender attached so I can't blame the chemistry entirely. I've owned 1910 for over two decades so I've seen a few batteries. For the last 8 years I've been following a certain Li-ion chemistry that few have probably heard of. It's not as energy dense as NCA, NMC or LFP so most have likely never heard of it. It's Lithium Titanate Oxide (LTO) and it's easily the most durable of the various ternary and LFP flavors possessing four or five times the charge cycle life and capable of delivering huge amperage even at -20C. While it's not ideal for EV traction batteries it is just may be better than lead acid for many 12V applications. Unfortunately, until recently, it's always been prohibitively expensive. LTO is known for accepting huge C-rates (charge and discharge), having very wide operational temperatures -20C to 60C, and amazing cycle life but with a cell voltage of only 2.4V it was never available in 12V form. I had contemplated building my own 12V battery from six 30Ah LTO cells wired in series. They're available from eBay for about $50 each but after adding the necessary BMS I felt the cost wasn't worth the gamble.
Recently however, new 12V LTO options have become available for around $200 so I gave in and bought one from TYKOOL. It's their LTT20L-BS (or LTT20-BS if you want the orientation of the terminals switched). I've only had it about two months so far but no issues to report. My SuperX now cranks as well as it ever has. I just tried it this morning after letting it sit for nearly 3 weeks and it cranked over like it had been sitting on a tender. I was initially worried about the low 10Ah rating and the resting voltage falling below 12.6V. It will take a 14.5V charge and hold above 13.5V for a few days after turning off the bike but it will slowly settle down to about 12V. Letting it sit for 3 weeks (with several nights falling into the low 40's) didn't seem to affect it one bit though. The voltage seems to settle after a week or two and hold at about 12.0V. I suspect that in order to keep costs down they used cheaper 5Ah cells in a 6S2P arrangement.
Anyway, I'll be the guinea pig for this test. We'll see how it holds up in the heat. I'll update as the Summer goes on.

7

Events, Rallies, Rides, etc... / XHRiders Club all memeber On-line meeting 2026

« Last post by mseastrom@gmail.com on April 14, 2026, 08:17:59 AM »

Please mark your calendars for the 2026 XHRiders all club member on-line meeting April 19th 2026 4PM CDT. The Club Directors will be sharing whats going on for 2026. Special guest Dan Hanlon will be on hand to share a few thoughts with us.

All paid members for 2025 and 2026 will receive a link via email to the address each member provided at the time of club registration with the video conference link and optional call in number.

To become an X-Rider Club member or to renew your membership click on this link. https://www.xhmotorcycles.com/.../xhclub/JoinorRenewHere.php See less
Online

8

Events, Rallies, Rides, etc... / Re: Super X podcast

« Last post by wytfut on February 12, 2026, 08:16:29 AM »

episode 2 of the Jumper Cables podcast

https://youtu.be/9DHM65O-Xwk?si=Hsq9GHywJuFzi4ep

9

Events, Rallies, Rides, etc... / Super X podcast

« Last post by wytfut on January 24, 2026, 11:29:31 AM »

a random group of 4 of us are making an attempt to produce a podcast related to "all" Super X (1999-2000) Excelsior Henderson. Actually it'll be much more than that, but we are at this point brand new.
You can find it on youtube....   "jumper cables"  or follow this link to the very first episode 000 ... 
Please subscribe.... and let youtube let you know when the next episode is fresh and up. 

https://youtu.be/F0sl3-bxiHo?si=hylVQxcwZQjg7HLv

10

General Discussion Similar to Facebook / 1999 Excelsior Henderson Super X

« Last post by Dave Houghtlin on January 19, 2026, 01:35:51 PM »

1999 Excelsior Henderson Super X

Garaged since 2008, low mileage, < 12K, gift from original owner after he passed on, #543, many accessories and original brochures/letters/paperwork. No dents or dings. All original EH parts. Saddlebags, windshield, sissy bar, etc. Transmission is stuck in 1st gear. Good bike for experienced mechanic? Good for parts? Bike is in Central California. I have the pink slip and I will pay the registration fees before selling. Will consider any reasonable offer. As is.

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