Torque specs for handle bar clamp to triple clamp

[itstuantran_imp]

Need torque specs for lower handle bar clamp, which mounts to the upper triple clamp. Thanks a lot

[Cormanus]

From the 2013 Service Manual: The four bolts in the top of the mount are tightened to 15 Ft lb (front ones first). For the 'handlebar lower bolts' it says to tighten securely.

What size are they and I can probably find the general torque specs.

[Lord Popgun]

Cormanus,

There is no spec listed. In the 13 manual page 12-10 it says to tighten the handlebar lower holder nuts securely.

I’m not sure the general torque table would work here due to the rubber mounting.

[itstuantran_imp]

Thanks a lot Cormanus. Bolt size 8mm

From the 2013 Service Manual: The four bolts in the top of the mount are tightened to 15 Ft lb (front ones first). For the 'handlebar lower bolts' it says to tighten securely.

What size are they and I can probably find the general torque specs.

[Girts80_imp]

Be careful.
The nut is actually tightening against metal tube inside the rubber mount, that means:
1. you can not tighten the rubber mounts tighter as they are
2. it's quite easy to over-tight and tear off the bolt or thread (believe me )
And finally -- there are self-locking nuts, so better a bit too loose than too tight.

[itstuantran_imp]

Thanks popgun

Cormanus,

There is no spec listed. In the 13 manual page 12-10 it says to tighten the handlebar lower holder nuts securely.

I’m not sure the general torque table would work here due to the rubber mounting.

Thank you Girt80

Be careful.
The nut is actually tightening against metal tube inside the rubber mount, that means:
1. you can not tighten the rubber mounts tighter as they are
2. it's quite easy to over-tight and tear off the bolt or thread (believe me )
And finally -- there are self-locking nuts, so better a bit too loose than too tight.

[jimgl3_imp]

Metric Hex Cap, Plated - Recommended Torque in Ft/Lbs unless Noted
Grade 4.8 Grade 8.8 or 9.8 Grade 10.9 Grade 12.9
Lube Dry Lube Dry Lube Dry Lube Dry
M4 (In/Lbs) 8.5 10.0 20.4 27.6 28.8 38.4 33.6 45.6
M5 (In/Lbs) 15.6 21.6 40.8 54 58.8 78 68.4 91.2
M6 (In/Lbs) 42 54 78 102 114 144 138 150
M8 8.5 11.5 16 20 24 30 28 35
M10 17 21 32 40 47 60 55 70
M12 29 39 55 70 80 140 95 120
M14 47 60 88 110 130 165 150 190
M16 73 92 140 175 200 225 240 300
M18 100 125 195 250 275 350 325 410
M20 140 180 275 350 400 500 460 580

[Girts80_imp]

Thank You jimgl3!
This is great info.

Though I don't think I have ever seen grade 4.8 bolts. Who needs something this soft?

[itstuantran_imp]

Thank you

Metric Hex Cap, Plated - Recommended Torque in Ft/Lbs unless Noted
Grade 4.8 Grade 8.8 or 9.8 Grade 10.9 Grade 12.9
Lube Dry Lube Dry Lube Dry Lube Dry
M4 (In/Lbs) 8.5 10.0 20.4 27.6 28.8 38.4 33.6 45.6
M5 (In/Lbs) 15.6 21.6 40.8 54 58.8 78 68.4 91.2
M6 (In/Lbs) 42 54 78 102 114 144 138 150
M8 8.5 11.5 16 20 24 30 28 35
M10 17 21 32 40 47 60 55 70
M12 29 39 55 70 80 140 95 120
M14 47 60 88 110 130 165 150 190
M16 73 92 140 175 200 225 240 300
M18 100 125 195 250 275 350 325 410
M20 140 180 275 350 400 500 460 580