XM Carbon Speed - "Gran Tourismo" Frameset

Started by rsw42, May 28, 2025, 11:45:10 AM

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SkylarRnD

What size tire are you running on this frame and how much space do you have?

I'm debating putting 35mm GP5000 AS TR on this bike with 26mm internal width wheels, just want to make sure I'll still have clearance with that wheel/tire combo...

rsw42

Chain: I believe I've used a 116 link chain and did cut a bit off. It doesn't just depend on the bike, but also on the size of Cassette and your Chainrings.

Tires: I'm running Vittoria Corsa 34 and I've got enough room left. I wouldn't be sacred to go for Continental 35ers... (I just took the Vittorias since there are no GP5000 in 35 aside from the All Seasons...)

daniel_ac

Quote from: pprajaa on February 06, 2026, 06:26:58 AM
I have just built the bike. Yet to do the bike fit.

Hi! Your bike looks great, did you get the paintjob like this from Peter?
How many spacers are currently on this, could provide me with a measurement with a picture? That would be very helpful as I estimate I will probably need 6-7cm of Spacers as well :)

Thank you!

Mlesna

XMCS also has a good looking riser on-piece handlebar. Peter sent me this yesterday, as I was ordering my frame.

kubackje

Those fake zipps look horrendous

Jonnan_NOR

On these kinds of seatposts, do you still use carbon grip paste?

Mlesna


Mlesna

Had my first ride today. Was tons of fun! I like that bike a lot. No bar tape, yet.

pertual

I've had the frame for a while and i was able to test it in different scenarios (flat rides, punchy walls and long climbs, both long and short days in the saddle), i can say that the frame is very comfortable with a reasonable tubeless setup, absorbs road chatter without sacrificing responsivity. So far i had PBs on a lot of segments around me so it's definitely faster than my old MY21 rim TCR  ;D

i only have two issues with it:
- the saddle keeps slipping back during the ride (steel rails). Peter suggests 6NM for the saddle clamp bolt but it's not sufficient. has anybody had this problem?
- when out of the saddle and moving the front wheel a lot side to side the front brake rubs a bit. This could be flex in the for blades or maybe a compatibility issue (I'm running wheeltop calipers with stock pads and a shimano rotor in the front)

Picture for color reference, pretty pleased with how it turned out!


Dewa6975

I have the same issue regarding disc rubbing but I'm 90kg so that probably (partially at least :) ) on me!

pertual

Quote from: pertual on May 05, 2026, 11:01:22 AM
I've had the frame for a while and i was able to test it in different scenarios (flat rides, punchy walls and long climbs, both long and short days in the saddle), i can say that the frame is very comfortable with a reasonable tubeless setup, absorbs road chatter without sacrificing responsivity. So far i had PBs on a lot of segments around me so it's definitely faster than my old MY21 rim TCR  ;D

i only have two issues with it:
- the saddle keeps slipping back during the ride (steel rails). Peter suggests 6NM for the saddle clamp bolt but it's not sufficient. has anybody had this problem?
- when out of the saddle and moving the front wheel a lot side to side the front brake rubs a bit. This could be flex in the for blades or maybe a compatibility issue (I'm running wheeltop calipers with stock pads and a shimano rotor in the front)

Picture for color reference, pretty pleased with how it turned out!

the saddle slippage seems to be fixed after changing saddles, maybe the previous one had dented rails from over-torquing on another bike, 6NM is enough on my end.

bsharp77

Just checking in for some long term reviews and seatpost info on the GT.

Im seriously considering it as my "best" bike - currently debating to go for it or the newly announced Lightcarbon LCR020.
The LCR020 is more aero, but id be using a riser bar anyway and the frame is over 200g heavier than the GT - I could have next to no spacers, a slightly longer stem and a really lightweight build with the GT which is very appealing - but its dear at $1200, and thats discounted from the original $1600 price tag.

I know there were issues with the original seatpost - and I seen it menitoned Peter had talked about a v2 with the dual bolt adjustment system, - did this ever happen? If so, that could be a deal clincher for me.

Also seen this build on the WW forum and the decals are outstanding, so trying to find out where they were done - this looks phenomenal.


rsw42

There is a new seatpost and I've got one from Peter. Since the original statistics on my GT still sits perfectly I never bothered taking it out to switch over, but I haven't heard that anyone after the first few frames had the same issues as we had...

I strongly believe Peter listens to the input from here and XMCS improve their product on our feedback.
I think the GT is available long enough for the teething issues too be resolved.

I'm still riding my GT and riding it rather hard. The only issue I encountered apart from the statistics is that the wheeler I'm using (9velo gravel wheeler) is too flexy and gives me problems when sprinting... New wheelsizes to come soon...

Hell I like that frameset so much that I've even considered getting one for my daughter to race on it... But I believe I'd rather go for a race frame for her

Serge_K

Quote from: voidptr on September 23, 2025, 05:04:05 AM

On the downside, the long chainstay doesn't really improve rear tire clearance, which is limited to around 35mm if you want 4mm of clearance on each side.
The tire makes contact with the chainstay before the seatpost, so there's always going to be a noticeable gap.

For me in the future when i forget again: this frame can't take a GP5000 in 35C.
Next question: quid of the VRT?

rsw42

#239
Quote from: Serge_K on July 24, 2026, 05:25:20 AM
For me in the future when i forget again: this frame can't take a GP5000 in 35C.
Next question: quid of the VRT?

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