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Long time road biker getting into XC mountain biking

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Long time road biker getting into XC mountain biking

Old 10-05-20, 10:31 PM
  #1  
sffred
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Long time road biker getting into XC mountain biking

Hello my fellow enthusiasts, I知 a long time road biker built a few road bikes during my younger days, and now that I知 a family man, I知 building me and my wife custom mtb痴.

I just bought matching Specialized Chisel framesets, hers in XS and mine in M both in gloss chameleonsnake eye/Forrest green. (Check it out on specialized website)

and I need y誕ll to teach me to build this bike to the next level.

I知 pretty much sold on a 1x12 set up (prolly a XTR set up, I知 a Shimano ***** and restomoded my 96 Cannondale with DA 7800-7850 everything) unless you all can tell me otherwise.

what fork should I use?
groupset recommendations?
wheelsets?
etc?

thanks in advance
Fred
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Old 10-06-20, 11:44 AM
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Probably should be some kind of XTR 1x12 drivetrain.
Probably 120mm suspension fork.
Shimano Hydraulic disc brakes.
Some kind of 29r wheelset with no wider than 23mm internal width
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Old 10-06-20, 12:23 PM
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Sorry kinda double the thread on this. But I値l keep this one.

but yeah. For my wife痴 bike I think I decided on the groupset being a complete Shimano SLX micro spline 1x12 10x51 with a 30mm chainring.

I noticed on the Specialized Chisel that it has a 2 piston brake calipers front and back, can I switch them with the 4 piston? Or is that only for full suspension downhill MTB痴? If so what size brake rotors can I use with the 4 piston calipers?

I知 aiming more towards a XC race trail/CrossCountry theme so I知 sticking with 100mm travel, but it痴 hard for me to find 42mm offsets

now for wheels I知 aiming for a 29 2.2 to 2.3 width but I can稚 find any SLX hub壇 wheelsets? I might just go DT Swiss but I知 trying to minimize weight as much as possible for my wife.

imma hold off on my bike for right now but I値l post pics soon.
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Old 10-06-20, 02:04 PM
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SLX is the sweet spot, it's the 105 for mt. bikes. It came on my '19 Chisel and has been a great system. The Comp came with a Specialized crank and BSA bottom bracket, so any 1X crank will work. I see an XT soup-to-nuts 1X group on Texas Cyclesport for $930. Be forewarned though that groups and parts are really hard to source, still, so best of luck.
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Old 10-06-20, 09:08 PM
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Luckily enough I was able to source a take off 2020 specialized chisel front fork (RockShox Judy silver 42offset 100mm) so that値l be for my wife.

Also found out factory rotors are 160mm and have to have a caliper adapter/spacer in order to run 180mm. Just don稚 know if I could run the 4piston SLX instead of the 2piston SLX calipers
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Old 10-06-20, 09:46 PM
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You can do quad-piston, but you probably won't need it. Why not just stick with what you have, and if you wind up thinking you need quad-pistons, it is pretty easy to swap the front or both out.
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Old 10-06-20, 11:27 PM
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I have that fork in my bike. It痴 functional but sure doesn稚 match the level of your notional brakes and drivetrain.
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Old 10-07-20, 08:19 AM
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The frame color is sick!

Four piston is not designed for XC and would probably be overkill.

In addition to most of the suggestions here I would add for next level build
  • Fox 32 Stepcast fork
  • Custom built wheel set with Chris King hubs and We Are One Revive rims
  • dropper post
  • most of the contact points are rider preference but would have some suggestions for those also
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Old 10-08-20, 03:15 AM
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Originally Posted by sffred View Post
Luckily enough I was able to source a take off 2020 specialized chisel front fork (RockShox Judy silver 42offset 100mm) so that’ll be for my wife.

Also found out factory rotors are 160mm and have to have a caliper adapter/spacer in order to run 180mm. Just don’t know if I could run the 4piston SLX instead of the 2piston SLX calipers
In my opinion, SLX brakes are not worth it. Deores, MT500, or MT520 (if you want 4 pistons) have the same braking power, lever, and caliper design at half the cost.

Also, I switched from SLX 2 piston, to MT520 4 pistons and the braking and feel seems identical to me. I don't think that 4 pistons will make any difference for XC riding. At least, they don't make any with my riding style.
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Old 10-11-20, 06:05 PM
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Couple pics

Okay. I致e decided to go with the 2 piston. I want to match all the groupset completely. So SLX all the way for my wife痴 bike. I can稚 wait to build. But parts are hard to find and tires are pricey. Here痴 a couple pics hopefully to keep this thread going.



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Old 10-12-20, 12:15 PM
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No dropper posts? You're crazy! Dropper posts are as important as suspension! (Well almost)
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Old 10-12-20, 02:09 PM
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Unfortunately when I bought the frame set it only came with a regular 30.9 seatpost. Once we get better we will upgrade to a dropper.
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Old 10-12-20, 04:45 PM
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Nearly all serious trail bikes are now coming with droppers, but for XC they are still not a given. (That and 12-speed and a few years of inflation have turned the "$1000" bikes into nearly $1500 bikes, but there you go.)
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Old 10-13-20, 11:22 AM
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Originally Posted by eshew View Post
No dropper posts? You're crazy! Dropper posts are as important as suspension! (Well almost)
Depends on where and how you ride - He's building a xc oriented bike -- dropper post is needless extra weight for this






xc
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Old 10-13-20, 11:38 AM
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Sure I guess if you're riding flat gravel. But so much can be gained from having a dropper.... Safety on descents, fun ripping up single track, attempting to get any air whatsoever, bunny hopping... All things that arent that much fun with a saddle shoved up your keister all the time

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Old 10-13-20, 11:53 AM
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Originally Posted by DMC707 View Post
dropper post is needless extra weight for this
At the pro level, at least, there are plenty of them now using droppers. Here's the world champion's bike (though she just withdrew from the race this weekend after a crash and concussion)

https://www.pinkbike.com/news/bike-c...-spark-rc.html

And here's Nino Schurter's bike, without a dropper
https://www.redbull.com/us-en/nino-schurter-bike-check
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Old 10-13-20, 01:28 PM
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Originally Posted by Darth Lefty View Post
At the pro level, at least, there are plenty of them now using droppers. Here's the world champion's bike (though she just withdrew from the race this weekend after a crash and concussion)

https://www.pinkbike.com/news/bike-c...-spark-rc.html

And here's Nino Schurter's bike, without a dropper
https://www.redbull.com/us-en/nino-schurter-bike-check
It is interesting, in the Nino article, that he says the dropper is one of the best inventions for bikes. He doesn't use one only because he thinks they haven't made them good enough for his style of riding.
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Old 10-13-20, 01:28 PM
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Originally Posted by eshew View Post
Sure I guess if you're riding flat gravel. But so much can be gained from having a dropper.... Safety on descents, fun ripping up single track, attempting to get any air whatsoever, bunny hopping... All things that arent that much fun with a saddle shoved up your keister all the time
Totally agree. I legit do not see myself riding off-road without a dropper ever again. Even with a rigid fork I would still run a dropper
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Old 10-13-20, 01:31 PM
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Bikes are so rad now it's ridiculous
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Old 10-14-20, 01:52 PM
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Unfortunately me and my wife are rookie MTBer’s so we (if not me) will upgrade to dropper post soon enough.
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