THM Calvicula SE Crank vs Dura Ace 9000

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eforce123
Posts: 132
Joined: Sun Apr 08, 2018 9:27 pm

by eforce123

I ride with Dura ace mechanical and I was curious if I would notice a difference if I switched to Calvicula SE as its almost half the weight? It seems many people on here run the THM crank on all their bikes. Let me know, thanks!

by Weenie


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spdntrxi
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by spdntrxi

it makes your overall bike lighter... but my legs at the pedels dont feel any different.
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tabl10s
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by tabl10s

Looks 😎er.
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alcatraz
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by alcatraz

Unless you have a frame that supports 6806 bearings going to 30mm spindle like on the thm would be a downgrade.

spdntrxi
Posts: 5792
Joined: Sat Jul 20, 2013 6:11 pm

by spdntrxi

alcatraz wrote:
Fri Oct 11, 2019 11:47 pm
Unless you have a frame that supports 6806 bearings going to 30mm spindle like on the thm would be a downgrade.
isn't that BB30 bearing size ? .... which I have used for many years with M3, Classic and now SE cranks... but I just got a BB86 frame that I am using a SE cranks with.. I know not the ideal bb standard for 30mm ID.. but I check it often and so far it's very smooth still.
2024 BMC TeamMachine R Building
2018 BMC TImeMachine Road
2002 Moots Compact-SL- getting aero look makeover
2019 Parlee Z0XD - "classified"
2023 Pivot E-Vault - completed project, full Xplr package

rollinslow
Posts: 864
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Location: New York

by rollinslow

FWIW, the main reason I didn't do it is because the Chris King ceramic BB is better than the THM one in my opinion.
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alcatraz
Posts: 4064
Joined: Mon Aug 29, 2016 11:19 am

by alcatraz

spdntrxi wrote:
Sat Oct 12, 2019 12:52 am
alcatraz wrote:
Fri Oct 11, 2019 11:47 pm
Unless you have a frame that supports 6806 bearings going to 30mm spindle like on the thm would be a downgrade.
isn't that BB30 bearing size ? .... which I have used for many years with M3, Classic and now SE cranks... but I just got a BB86 frame that I am using a SE cranks with.. I know not the ideal bb standard for 30mm ID.. but I check it often and so far it's very smooth still.
Lets just say the bearing size of a bb86 shell with 30mm crank is a compromise. Balls and/or races need to be undersized relative to other setups.

spdntrxi
Posts: 5792
Joined: Sat Jul 20, 2013 6:11 pm

by spdntrxi

alcatraz wrote:
Sat Oct 12, 2019 4:23 am
spdntrxi wrote:
Sat Oct 12, 2019 12:52 am
alcatraz wrote:
Fri Oct 11, 2019 11:47 pm
Unless you have a frame that supports 6806 bearings going to 30mm spindle like on the thm would be a downgrade.
isn't that BB30 bearing size ? .... which I have used for many years with M3, Classic and now SE cranks... but I just got a BB86 frame that I am using a SE cranks with.. I know not the ideal bb standard for 30mm ID.. but I check it often and so far it's very smooth still.
Lets just say the bearing size of a bb86 shell with 30mm crank is a compromise. Balls and/or races need to be undersized relative to other setups.
no doubt... I expect to be replacing them more often.
2024 BMC TeamMachine R Building
2018 BMC TImeMachine Road
2002 Moots Compact-SL- getting aero look makeover
2019 Parlee Z0XD - "classified"
2023 Pivot E-Vault - completed project, full Xplr package

by Weenie


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eforce123
Posts: 132
Joined: Sun Apr 08, 2018 9:27 pm

by eforce123

I ride a 2014 Evo hi mod

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