Author Topic: XM Carbon Speed - "Gran Tourismo" Frameset  (Read 171282 times)

Serge_K

Re: XM Carbon Speed - "Gran Tourismo" Frameset
« Reply #240 on: July 24, 2026, 06:45:25 AM »
I'm running a GP5000 35, no problems. Everywhere I look there's at least 3mm air, more like 5mm

Edit: I just checked, running Xmcs wheels with 26mm internal

Lol that topic never stops being confusing... 1st of all, thank you.
Do you have calipers to measure the measured size of your tyre (inflated at riding psi)?
Are you eye balling these clearance measurements ("air"), or is it measured? The easiest method i found is using allen keys. A 4mm allen key either fits, or doesnt. if it fits, you try 5, it either fits, or doesnt. my LTK 268 has a 34.4mm tyre w 4mm either side, measured w calipers & 4mm allen key. I have no contact on the left side, and contact on the right side. 5mm key simply doesnt fit on either side.

Last: is it the new gp5000 35C, or is the all season version? (not sure it matters, but might as well be thorough).

Edit from me from the future as per below.
Assuming that GP5000 35C All Season and the new fast one measure the same, then 26mm IW rim --> c.38mm tyre + 4 + 4.
--> can't really clear the GP5000 on a rim where you dont have a lightbulb effect (reports of 40-41mm on rims that result in a 38-40mm external width).
Also with the caveat of ETRTO safety shenanigans of 35C on wide rims that are still up for debate.
To be fair, maybe 3mm clearande is enough, btw. Never tested that. all i know is that ISO standard is 4mm and that 3mm isnt.
Also to be fair, a lightbulb effect at the front is a no no for me, but at the end of the day, on the rear wheel, it's dirty air already, so maybe it's not the end of the world is the tyre to rim transition is sub optimal.
Conclusion: kind of works, i guess?
« Last Edit: July 24, 2026, 07:54:13 AM by Serge_K »

rsw42

Re: XM Carbon Speed - "Gran Tourismo" Frameset
« Reply #241 on: July 24, 2026, 07:28:01 AM »
Haven't got calipers with me, but I've gotten the allen keys out, just for you...
5+ mm everywhere except next to the chain stays, there it's 4mm...

Using the GP 5000 AS TR with TPU inner tubes... On XMCS 26 internal rims (not checked, I believed Peter on that one)

Greetings from the roadside of the TDF

Dewa6975

Re: XM Carbon Speed - "Gran Tourismo" Frameset
« Reply #242 on: September 02, 2026, 11:10:41 AM »
Hello everyone,

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https://chinertown.com/index.php/topic,7535.0.html

Serge_K

Re: XM Carbon Speed - "Gran Tourismo" Frameset
« Reply #243 on: September 11, 2026, 11:17:13 AM »
Are there more people riding this frame? i feel like if there's 200+ pages on the 18D, there should be more pages on this thread.

Mlesna

Re: XM Carbon Speed - "Gran Tourismo" Frameset
« Reply #244 on: September 11, 2026, 12:09:27 PM »
I ride it and I love it. Havent got it creek-free, yet, but that is most likely a me problem. The geometry is absolutly perfect for me.

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moodyedge

Re: XM Carbon Speed - "Gran Tourismo" Frameset
« Reply #245 on: September 12, 2026, 04:48:31 AM »
Are there more people riding this frame? i feel like if there's 200+ pages on the 18D, there should be more pages on this thread.

Agreed...Doesn't seem that popular.


I ride it and I love it. Havent got it creek-free, yet, but that is most likely a me problem. The geometry is absolutly perfect for me.

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What's creaking? I will not tolerate that sort of thing.

gribs

Re: XM Carbon Speed - "Gran Tourismo" Frameset
« Reply #246 on: September 12, 2026, 06:35:36 AM »
Are there more people riding this frame? i feel like if there's 200+ pages on the 18D, there should be more pages on this thread.

It's hardly surprising when it's a lot more expensive. I bought one of Hambini's frames off him and have had it built up for a couple of weeks (Ultegra and XMCS 58mm wheels). It feels to ride smoother and slightly faster than my Light Carbon LCR017 but that could just be the new bike effect. The overall build quality and fit and finish does feel noticeably better.

Mlesna

Re: XM Carbon Speed - "Gran Tourismo" Frameset
« Reply #247 on: September 12, 2026, 09:09:17 AM »

What's creaking? I will not tolerate that sort of thing.

My cockpit, if I really work it and the right side of my crank (I think). But like I said, I am not at all a reliable mechanic, so I assume that is root cause.