What’s everyone running with an Aspero? 42s fit in there easily with a 24-ish internal width rim?
I am currently running Pathfinder Pro 42’s on a 23mm internal rim…from last Sept until last week, I was running Rambler 45’s on the same rims.
Zero issues with either tire on my Aspero.
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Agreed. I’m currently on a 1x SRAM mullet with 40t and 10-50. It’s fine and I do love the lack of shift cables which makes traveling easier as well as operating my AXS dropper.
But my previous gravel bike had GRX 2x with 46/30 and 11-40. Turns out this gearing is wider than the mullet. That was the sweet spot for me in terms of range, cadence, and ergonomics. If GRX ever goes truly wireless I’d go back to that.
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No wonder you’re an outlier. I’m probably looking at it with myopic North American lenses but I think many of us don’t think “the Alps” when thinking about 1x and gravel.
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G-One RS 45s on the Aspero 5
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@Power13 , @Todd_Palmer How much clearance do you have? I think the Aspero is spec’d for 40mm tires. I’m concerned about mud clearance without wrecking the frame.
I like the e*thirteen 9-45 Helix Gravel cassette. I just change out the chainring depending on the course profile. It works well with the SRAM AXS XPLR Derailleur.
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This is what I was reading and wanted to confirm. I have this issue with my RaceMax and was thinking of selling it and going with the Aspero but don’t want to have the same issue, ha.
What chain ring sizes do you swap between? Do you also change chains / length?
I have 38, 40, and 42 chainrings. The 42 is perfect for a rolling to flat course with a 42/9. The 38 is great for a course with a lot of climbing where you want easier gearing, as the 38/45 works well for steep long climbs, and the 38/9 is still pretty big for the flats.
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Yeah I wouldn’t run the 45s in mud, def would gum up quickly
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Honestly, I never even checked……for whatever reason I thought the Aspero was officially rated for a 45 so I just slapped them on for Big Sugar last year.
I just repacked my bike for my flight home, so it will be a day or so before I can check and see what it looks like w/ the 42’s.
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If I can’t find the Kaius stock with the new GRX 12speed, or can buy the frame. I will have to get the Factor.
I’m also curious for this build: Dura Ace + GRX
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I’ve been running Dura-Ace 2x with GRX (Garmin pedals for power) for the past three years. It’s the best gravel racing setup. Never dropped a chain even though I’m always forgetting to put the clutch on.
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Are you using the 11-40 XT cassette without road link also?
Nah. I run a Dura-Ace 50-34 crank with a Dura-Ace 11-34 cassette. Plenty of gearing on both ends and all the wonderful little clicks in between.
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Maybe the new 11-36 is enough.
The 11spd Shimano derailleurs mostly work wit 11-40 cassettes I have it currently on my gravel bike with a 105 derailleur and it works shifting isn’t as crisp as on the 11-34 but I also have a shitty sun race cassette.
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This is the Aspero with 42 pathfinder pros on a 22mm rim. It’s tighter than it looks, ok but not doable in sticky mud.
I have way more clearance with 30mm IW rims and 42 WTB Resolutes that blow up to almost 45mm wide. I guess the wider rim flattens the tire profile, and there’s plenty of clearance for 45mm at the stays. So it’s the seat tube that’s an issue, and for that you need wide rims to fit larger tires.
Otherwise I’d say 42 is a definite max on 21-22mm rims.
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Thanks, this is exactly what I was looking for!