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Second Wheelset for fasl non-tech XC trails

973 Views 10 Replies 5 Participants Last post by wayold, Oct 16, 2021

OldMike

Discussion Starter · Oct 15, 2021

Currently on a 2021 SJ Comp. Swapped out the stock Spec tires for a 2.5 Assegai/2.4 DHRII. No complaints as they perform amazing for the trails I ride (primarily off camber rock/roots) in all conditions.

Next yr however I'd like to ride with a group who rides primarily XC race type trails (single/doubletrack, fire roads, etc). I used to ride this same trail yrs ago on a C'dale with 2.0" XC tires and I'm looking at a light wheelset for the SJ.

The tires are no issue as i have several options in mind (29X 2.1/2.2), however I'm wondering if the BTLOS WM-i22 would suffice? I'm sure the WM-i30 a better choice although it seems overkill for 2.1" tires and is not as light.

Also, If I have centerlock Rotors currently, is it ideal to have them on the second set also?

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david.p

· #2 · Oct 15, 2021

i22 is just fine for 2.1/2.2, but my preference would be i24. I recently built up a wheelset with i26 rear, i27 front for use with 2.25-2.4 tires (currently running 2.35 front and rear). I have another bike with 2.25 on i30 and I actually prefer that but as you said I'm not sure it's worth the weight.

Using the same rotors across wheels will hopefully help with not having to messing with brake alignment but if the wheels have different hubs then there may still be some spacing differences. I use a single cassette per bike and just move it between wheelsets when changing.

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frdfandc

· #3 · Oct 15, 2021

The easiest way is to have rotors on the new wheels, but since you're probably be going with a different brand than what you have right now, brake calipers and the rear derailleur will more than likely need adjusted every time you swap wheels.

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OldMike

Discussion Starter · #4 · Oct 15, 2021

@ david.p
Thanks for the info/tips.
I looked at the i24, but for some reason when identically spec'd, it weighs the same as the i30
The i25 looks promising also.

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OldMike

Discussion Starter · #5 · Oct 15, 2021

frdfandc said:
The easiest way is to have rotors on the new wheels, but since you're probably be going with a different brand than what you have right now, brake calipers and the rear derailleur will more than likely need adjusted every time you swap wheels.

I was planning on having seperate rotors for each set. Is it possible to shim centerlock rotors?
Those adjustments would be a PITA

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frdfandc

· #6 · Oct 15, 2021

OldMike said:
I was planning on having seperate rotors for each set. Is it possible to shim centerlock rotors?
Those adjustments would be a PITA

You may be able to get very thin shim behind the rotor, you just have to make sure that the lock ring threads down securely.

Those adjustments will be necessary for any wheel other than the ones you currently have on the bike. If you get the same hubs, then adjustments probably won't need to be done.

I have 2 different sets of wheels for my road bike. One is my everyday wheel set, the other I just use the rear for when I'm on the trainer during the winter. I have to adjust the rear derailleur everytime I swap the rear wheel. The hub dimensions are different. No way around it.

Sent from my moto e6 using Tapatalk

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OldMike

Discussion Starter · #7 · Oct 15, 2021

frdfandc said:
You may be able to get very thin shim behind the rotor, you just have to make sure that the lock ring threads down securely.

Those adjustments will be necessary for any wheel other than the ones you currently have on the bike. If you get the same hubs, then adjustments probably won't need to be done.

I have 2 different sets of wheels for my road bike. One is my everyday wheel set, the other I just use the rear for when I'm on the trainer during the winter. I have to adjust the rear derailleur everytime I swap the rear wheel. The hub dimensions are different. No way around it.

Sent from my moto e6 using Tapatalk

I can live with the derailler adjustment so hopefully the shims will work for the Rotors as my currrent Hubs are more than twice the weight of the 240's....

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frdfandc

· #8 · Oct 15, 2021

OldMike said:
I can live with the derailler adjustment so hopefully the shims will work for the Rotors as my currrent Hubs are more than twice the weight of the 240's....

Personally I use my good wheels most of the time and the stock ones are regulated to trainer/winter duty. You'll probably what to do the same thing. Regulate your stockers to occasional use.

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OldMike

Discussion Starter · #9 · Oct 15, 2021 (Edited)

frdfandc said:
Personally I use my good wheels most of the time and the stock ones are regulated to trainer/winter duty. You'll probably what to do the same thing. Regulate your stockers to occasional use.

Sent from my moto e6 using Tapatalk

Would make sense in most cases, however I'm after a light-weight XC race wheelset for grueling climbs and fast descents.

i.e. putting a Ron/Race on my stock Wheelset would in fact be slightly heavier in weight to my 2.5 Assegai/ 2/4 DHRII on a BTLOS wheelset.

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