2020 Trek Supercaliber XC MTB Race Bike

Interestingly the US site still shows 2.2 for the 2022 models.

they also say 33mm for their CX bike but people run larger. not sure why you’d need more than 2.2 on supercal though.

No, not noisy at all, so perhaps something was off with their setups - maybe their forks?

If I’m riding slowly on a bumpy surface like grass, I’ll sometimes here a sort of whooshing sound from the rear shock. On the trails I don’t hear this as the tire noise is enough to mask it.

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I responded on a different thread, but am running 2.35 Racing Ralph/Racing Ray combo at the moment on a set of Enve M525s. They fit without issue.

I bumped up to the 2.35’s this year from the 2.25’s I ran last year. Not a night and day difference, but seem to be working great.

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I dunno, why does Nino run 2.4’s. Why does anyone run any size of tire? They prefer it. Wider tire, lower pressure, more grip, faster times.

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preferring it is circular.

if i had a $ for every ā€œnino runs Xā€ post…

not necessarily faster, or you’d see gravelistas on them. if you need more grip in the rear than what a good 2.2 provides, you might be doing it wrong.

In a sport where road bikes run 30+ tires, gravel bikes get front suspension + a dropper and fat bikes exist, I’m not sure you can do anything ā€˜wrong’.

I love running bigger tires for the extra comfort and lower rolling resistance over the gnarly stuff. No way I’m ever going back below 2.35 on a MTB.

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i get it, but this was a ā€œrace bikeā€ thread.

and the current XCO world champion is racing on 2.4 tires. So it’s not really irrelevant to talk about wider tires in racing

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for him, it was 2.2 + liner or 2.4. I doubt he’s doing objective efficiency tests, but i’d imagine 2.2 + liner miight actually be faster. he’s also putting out way more watts at way less weight on weird, curated courses at very high speeds. different use case from most tbh.

Supercaliber Rear Shock Sound

Here’s the sound of the rear shock of my Supercaliber.

yeah, thats the bushings sliding on the stanchion. that’s normal. could be a little tight. one of mine was a little tight. i had a burnishing tool made by http://blueliquidlabs.com/ to size the bushing appropriately.

  1. make sure the bushing isn’t too tight
  2. make sure you’ve got proper levels of oil inside the unit.

Yup, that’s the sound I hear too, but only when riding slowly in a quiet area like on the grass. Don’t hear it on the trail.

lol its really weird that you are so pressed on what size tires someone else prefers riding. If 2.2 is good for you, right on. If someone else prefers something wider, who cares?

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preferring it and saying 2.2 clearance is ā€œfairly ridiculous for a modern XC bikeā€ are two very different things. i grew up racing 26x2.0 pythons though so maybe i’m old. not slow. just old.

And ill stand by 2.2 clearance on a modern XC race bike is fairly ridiculous.

Also its kinda weird you are stalking me and responding to comments i made in other threads like a month ago lmao dude.

a full on oldmanyellsatcloud.jpeg moment matt.

just checking your cred. not convinced. you do you.

You’re obsessed. Cute.

I also think 2.2 max clearance on a modern xc bike is pretty silly. There isn’t any reason I can think of to not allow clearance for at least 2.4 or 2.6.

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From a sales/marketing standpoint, it definitely seems that not being able to accommodate 2.4s would be seen as a negative by a lot of prospective customers. Having flexibility and options is key.

On the weekend I was listening to an interview with Rose Grant. She’s been running 2.4 Aspens all season on her XC bikes, but did go down to 2.25 Aspens for Leadville. However for Breck Epic she went back to 2.4s. Definitely a trend towards bigger tires for XC events. Doesn’t mean you have to run them, but options are good.

I’m taking my SC to Brown County, IN this weekend with the 2.35 Schwalbe’s on it. I think those will be a great fit for the heavily rooted, at times rocky, terrain there.

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