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Upgrading crankset from 105

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Upgrading crankset from 105

Old 10-16-20, 11:05 PM
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Upgrading crankset from 105

I have a bike I am doing some fun upgrades on. The 105 is getting replace with mechanical Ultrgra, but I donít have a crank set picked out. What would be a direct fit for a Shimano fit BB that might be a fun option?
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Old 10-17-20, 01:19 AM
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it depends on your BB size is it 30mm or 24mm , i have been curious about this look bike i saw on hambini's channel that had a massive spindle ,
i personally like sram force or sram red , but you need and adapter for gxp , i can always find a used one for a decent price and they add stiffness where it counts , i only use alloy cranks on my commuters or cross/gravel trainers , but if i can find a carbon crank i would go for that any day over the mushy feeling of an alloy ,
but maybe you can find a dura-ace that would be a direct branch on the upgrade tree ,
i hear the cannondale hollow grams cranks are the shizznit ,
they always seem to be really expensive even without a power meter ,
105 is ok too ,
i really just look to add stiffness that adds responsiveness and efficiency rather than just weight savings maybe try better wheels and tires too
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Old 10-17-20, 05:31 AM
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Originally Posted by Toespeas View Post
it depends on your BB size is it 30mm or 24mm , i have been curious about this look bike i saw on hambini's channel that had a massive spindle ,
i personally like sram force or sram red , but you need and adapter for gxp , i can always find a used one for a decent price and they add stiffness where it counts , i only use alloy cranks on my commuters or cross/gravel trainers , but if i can find a carbon crank i would go for that any day over the mushy feeling of an alloy ,
but maybe you can find a dura-ace that would be a direct branch on the upgrade tree ,
i hear the cannondale hollow grams cranks are the shizznit ,
they always seem to be really expensive even without a power meter ,
105 is ok too ,
i really just look to add stiffness that adds responsiveness and efficiency rather than just weight savings maybe try better wheels and tires too
Describe that carbon crank feeling? Itís a major difference? All Iíve had is DA and Ultegra. Cracked a 9000 and an 8000 and wasnít happy.
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Old 10-17-20, 06:10 AM
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Yeah, that noodly aircraft grade ally just doesn't cut it, that's why the pros on Shimano get their mechanics to paint Dura-Ace logos on carbon cranks.
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Old 10-17-20, 07:28 AM
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Originally Posted by InvertedMP View Post
I have a bike I am doing some fun upgrades on. The 105 is getting replace with mechanical Ultrgra, but I donít have a crank set picked out. What would be a direct fit for a Shimano fit BB that might be a fun option?
Dura Ace.
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Old 10-17-20, 07:49 AM
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Originally Posted by Koyote View Post
Dura Ace.
+1

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Old 10-17-20, 08:36 AM
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Quarq or Rotor/P2M power meter.
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Old 10-17-20, 01:47 PM
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Originally Posted by InvertedMP View Post
I have a bike I am doing some fun upgrades on. The 105 is getting replace with mechanical Ultrgra, but I donít have a crank set picked out. What would be a direct fit for a Shimano fit BB that might be a fun option?
The Ultegra crankset?
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Old 10-17-20, 01:48 PM
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Originally Posted by Toespeas View Post
i but if i can find a carbon crank i would go for that any day over the mushy feeling of an alloy ,
You can't mush an alloy crank.
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Old 10-19-20, 10:33 AM
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Originally Posted by InvertedMP View Post
I have a bike I am doing some fun upgrades on. The 105 is getting replace with mechanical Ultrgra, but I donít have a crank set picked out. What would be a direct fit for a Shimano fit BB that might be a fun option?
Which version of 105 crank do you have? There have been several over the years with correspondingly different bottom brackets. Early 105 cranks had square taper bottom brackets and then later came the Octalink splined bottom brackets followed by the current external design. Whatever new crank you buy you may well need a new bottom bracket anyway
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Old 10-19-20, 10:36 AM
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Originally Posted by alcjphil View Post
Which version of 105 crank do you have? There have been several over the years with correspondingly different bottom brackets. Early 105 cranks had square taper bottom brackets and then later came the Octalink splined bottom brackets followed by the current external design. Whatever new crank you buy you may well need a new bottom bracket anyway
It is the latest 105 on a 2019 bike.
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Old 10-19-20, 10:56 AM
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Originally Posted by InvertedMP View Post
It is the latest 105 on a 2019 bike.
Pretty sure it's a direct swap, then. There doesn't seem to be a separate 105 BB.
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Old 10-19-20, 11:17 AM
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Originally Posted by InvertedMP View Post
It is the latest 105 on a 2019 bike.
as in the 5800 or the 7000 series... So you want a 'fun' chainset Something to make your pony stand out from the crowd...strip the finish off you current cranks and have then anodized to match your frame's main colour or accent colours...

If you want a solid performer then the Shimano Ultegra R8000...yeah it's a tad boring but it gets the job done...no fuss, no bother.

If you have more money than you know what to do with...the Rotor 2inPower Power Meter With Rotor Chainrings is the one for you...yeah it's black as well, but boy what a price tag

Form over function...give me function every time...
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Old 10-19-20, 11:30 AM
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Originally Posted by Bob the Mech View Post
as in the 5800 or the 7000 series... So you want a 'fun' chainset Something to make your pony stand out from the crowd...strip the finish off you current cranks and have then anodized to match your frame's main colour or accent colours...

If you want a solid performer then the Shimano Ultegra R8000...yeah it's a tad boring but it gets the job done...no fuss, no bother.

If you have more money than you know what to do with...the Rotor 2inPower Power Meter With Rotor Chainrings is the one for you...yeah it's black as well, but boy what a price tag

Form over function...give me function every time...
Yea I just ordered an Ultegra crank. Not a Rotor but also not the Rotor price lol.
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Old 10-19-20, 11:34 AM
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Originally Posted by InvertedMP View Post
Yea I just ordered an Ultegra crank. Not a Rotor but also not the Rotor price lol.
The Power2Max Rotor cranksets (no rings) are only ("only"?) ~$600.
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Old 10-19-20, 12:05 PM
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Originally Posted by WhyFi View Post
The Power2Max Rotor cranksets (no rings) are only ("only"?) ~$600.
Found a new R8000 crank with the exact specs I wanted for 150 on FB. Couldn't pass that up. I might add a Stages power meter.
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Old 10-19-20, 12:26 PM
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Originally Posted by Bob the Mech View Post

If you have more money than you know what to do with...the Rotor 2inPower Power Meter With Rotor Chainrings is the one for you...yeah it's black as well, but boy what a price tag

.
This is much better and significantly more novel for the money.
https://www.thm.bike/de/cranksets/cl...m3-road-2.html.

And for a cool $2300, this is much more expensive than both:
SRM PowerMeter SRM Origin Road
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Old 10-22-20, 01:01 AM
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Originally Posted by rubiksoval View Post
You can't mush an alloy crank.
HUH what are you talking about , alloy has this mushy feeling like you are walking through grapes , not literal mush !
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Old 10-22-20, 01:07 AM
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Originally Posted by Greatestalltime View Post
Describe that carbon crank feeling? Itís a major difference? All Iíve had is DA and Ultegra. Cracked a 9000 and an 8000 and wasnít happy.
more responsive , lighter , with a solid quality BB just feels snappy-er !
my commute bike runs the FSA goss and the sram alloy and gthere is no question , i also swapped my cross bike crank from alloy to carbon and the it was a world a difference , and when it broke in a cross race it was no biggy only a hundred bucks !
i feel if you want the same perforce in alloy its going to cost way more than carbon , even a brand new sram red is under 300 usually , compared to the higher quality alloy i think a carbon crank is good choice !
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Old 10-22-20, 01:09 AM
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Originally Posted by Kimmo View Post
Yeah, that noodly aircraft grade ally just doesn't cut it, that's why the pros on Shimano get their mechanics to paint Dura-Ace logos on carbon cranks.
pros run what ever they are sponsored to run , you cant use the pros as an example , plus they are on the highest quality cranks that cost more than most peoples bikes !
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Old 10-22-20, 04:04 AM
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Originally Posted by Toespeas View Post
HUH what are you talking about , alloy has this mushy feeling like you are walking through grapes , not literal mush !
No.
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Old 10-22-20, 04:05 AM
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Originally Posted by Toespeas View Post
pros run what ever they are sponsored to run , you cant use the pros as an example , plus they are on the highest quality cranks that cost more than most peoples bikes !
Dura ace cranks cost about 350 bucks.

So again, no.
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Old 10-22-20, 04:06 AM
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Originally Posted by Toespeas View Post
and when it broke in a cross race it was no biggy only a hundred bucks !
i feel if you want the same perforce in alloy its going to cost way more than carbon , even a brand new sram red is under 300 usually , compared to the higher quality alloy i think a carbon crank is good choice !
Ah, and here it is.
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Old 10-22-20, 06:59 AM
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Originally Posted by Toespeas View Post
pros run what ever they are sponsored to run , you cant use the pros as an example , plus they are on the highest quality cranks that cost more than most peoples bikes !
Back in the day, pros would be riding frames by custom builders, painted to look like their sponsors' frames, which weren't good enough.

I'm pretty sure that if you were to ask some pros, you'd hear that Dura-Ace cranks are good enough.
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