anyone know the torque spec for this?
Moderator: robbosmans
when trying to install my rotor QXL rings to my force22 crankarms, i had to remove these screws to gain access to torque down the 5th hidden bolt behind the drive-side crankarm.
currently i torqued it down to 10nm + blue loctite, but not sure if anyone knows the specific torque spec for these circled in red?
thanks.
currently i torqued it down to 10nm + blue loctite, but not sure if anyone knows the specific torque spec for these circled in red?
thanks.
Visit starbike.com Online Retailer for HighEnd cycling components
Great Prices ✓ Broad Selection ✓ Worldwide Delivery ✓
www.starbike.com
The proper way to install this ring is to get the special pressed-in nut for the hidden bolt. This way the hidden bolt can be installed without detaching the crank spider. Perhaps you could contact SRAM for the proper torque value.
Sent from my iPhone using Tapatalk
Sent from my iPhone using Tapatalk
Indirect answer: 5-7Nm
http://absoluteblack.cc/cx-oval-sram-di ... nring-cx1/
http://absoluteblack.cc/cx-oval-sram-di ... nring-cx1/
- wheelsONfire
- Posts: 6283
- Joined: Mon Jul 07, 2014 8:15 am
- Location: NorthEU
I think Rotors spec is 7Nm.
Run 6Nm and use Loctite small (just one drop) one each bolt.
Do not soak them!!
http://www.amazon.com/Loctite-38653-Pur ... B0002KKTT0
I used this at my Buell motorcycle and it hinders bolts from coming off.
This motocycle use an old HD Evo Sportster engine.
This vibrates A-L-O-T so if Loctite 222 is sufficent for these bolts, they for sure will remain seated on a bike!
It also brakes the (Loctite) bond at 6-8Nm.
This is the only Loctite you should use at bolts for cycling.
Run 6Nm and use Loctite small (just one drop) one each bolt.
Do not soak them!!
http://www.amazon.com/Loctite-38653-Pur ... B0002KKTT0
I used this at my Buell motorcycle and it hinders bolts from coming off.
This motocycle use an old HD Evo Sportster engine.
This vibrates A-L-O-T so if Loctite 222 is sufficent for these bolts, they for sure will remain seated on a bike!
It also brakes the (Loctite) bond at 6-8Nm.
This is the only Loctite you should use at bolts for cycling.
Bikes:
Ax Lightness Vial EVO Race (2019.01.03)
Open *UP* (2016.04.14)
Paduano Racing Fidia (kind of shelved)
Ex bike; Vial EVO D, Vial EVO Ultra, Scott Foil, Paduano ti bike.
Ax Lightness Vial EVO Race (2019.01.03)
Open *UP* (2016.04.14)
Paduano Racing Fidia (kind of shelved)
Ex bike; Vial EVO D, Vial EVO Ultra, Scott Foil, Paduano ti bike.
In general, if it's not something that's clamping onto something that can break, like a stem or a seat clamp does, you can usually just go by engineering spec sheets for a given thread size, as things will generally be engineered to standard engineering specifications.
[14lb(6.35kg) of no carbon fiber]
[2lo8.wordpress.com]
Your one-stop source for information and reviews on cheap eBay bike junk.
[2lo8.wordpress.com]
Your one-stop source for information and reviews on cheap eBay bike junk.
Valbrona wrote:pdlpsher1 wrote:The proper way to install this ring is to get the special pressed-in nut for the hidden bolt.
Go on then ... where do you get them from?
I got mine from Quarq. And SRAM owns Quarq. I don't own a Force crank but I assume every Force crank with stock chainring comes with one? So if you buy a Force replacement chainring it should come with one. And SRAM should be able to supply the part individually.
Sent from my iPhone using Tapatalk
FWIW, when I swapped cranks on my Quarq PM, SRAM told me to use Loctite 638 (I ended up using 680) and torque those 3 bolts to 10nm.
Ok finally got an official email back from SRAM
Torque spec for spider bolts is 8.9Nm.
Regards,
SRAM USA
www.sram.com
Service and Technical Documents:
www.sram.com/service
Learn more about The Power of Bicycles: www.worldbicyclerelief.org
Sent from my iPhone using Tapatalk
Torque spec for spider bolts is 8.9Nm.
Regards,
SRAM USA
www.sram.com
Service and Technical Documents:
www.sram.com/service
Learn more about The Power of Bicycles: www.worldbicyclerelief.org
Sent from my iPhone using Tapatalk
Visit starbike.com Online Retailer for HighEnd cycling components
Great Prices ✓ Broad Selection ✓ Worldwide Delivery ✓
www.starbike.com
Nm is the max force you can use before a bolt breaks
Mostimes the given torque is the MAXIMUM
Normally the given max torque is for dry bolts
When using a form of lube the used torque needs to decrease (Lubrication factor)
Probably 5-6 Nm would be more than enough
Steel bolts can bare more Nm than alu bolts
Mostimes the given torque is the MAXIMUM
Normally the given max torque is for dry bolts
When using a form of lube the used torque needs to decrease (Lubrication factor)
Probably 5-6 Nm would be more than enough
Steel bolts can bare more Nm than alu bolts