compression plug

Discuss light weight issues concerning road bikes & parts.
addictR1
Posts: 1380
Joined: Sun Jun 10, 2012 1:11 am

by addictR1

Is the cannondale compression plug the lightest and the best way to go? saw some photo online they are around 17g?

//uploads.tapatalk-cdn.com/2016041 ... 7cb18d.jpg

i'm looking to use this on my TMR02... trying to shave some weight..

by Weenie


2old4this
Posts: 361
Joined: Mon Jan 13, 2014 7:26 am

by 2old4this

I have those on three of my bikes. They are very solid. And because of the inner circles under the top, they won't slip side to side (that's what I think those circles are for anyways...)

You can shave about 8 grams by going with extralite ultrastar, top cap, and hallow bolt. I have (had) a set like that, which I've ended up replacing with carbon top cap and ti bolt. Hold them in your hand and feel how light they are. You'll know what I mean.


2old4this
Posts: 361
Joined: Mon Jan 13, 2014 7:26 am

by 2old4this

Ouch...

uraz
Posts: 98
Joined: Thu Dec 12, 2013 9:48 pm

by uraz

Lightest setup is probably extralite ultrastar and 1 piece top cap like the one from Absoluteblack. (Cheap option is J&L ultrastar copy + boplight topcap). Should be around 10g in total. It's fine unless stem bolts are over tightened. This setup is not idiot-proof.

Specialized long expander (shown on a video) weighs 28g without topcap. Focus izalco has even longer (and heavier) one.

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prendrefeu
Posts: 8615
Joined: Wed Oct 31, 2007 10:32 pm
Location: Los Feliz, Los Angeles, California
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by prendrefeu

False.

UltraStar 3 = 5.9g (lighter than the copy, obviously)
EE Cycleworks expander only = 5.3g
EE Cycleworks complete = 9.5g

Cycleworks expander + Absoluteblack topcap = 8.6g
Exp001 || Other projects in the works.

Squashednuts
Posts: 373
Joined: Tue Apr 25, 2017 11:12 am
Location: Christchurch New Zealand

by Squashednuts

addictR1 wrote:Is the cannondale compression plug the lightest and the best way to go? saw some photo online they are around 17g?

//uploads.tapatalk-cdn.com/2016041 ... 7cb18d.jpg

i'm looking to use this on my TMR02... trying to shave some weight..

I prefer the JRC headset expander

It's a few grams heavier but IMO it's a better design with more points of contact

https://www.jrc-components.com/collecti ... lug-w-bolt

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4ibanez
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Location: Norwich, UK
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by 4ibanez

If we're talking about 0.6g being important why not use a light carbon cap, e.g. Veloflyte and a nylon bolt - 2.1g on my scales

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prendrefeu
Posts: 8615
Joined: Wed Oct 31, 2007 10:32 pm
Location: Los Feliz, Los Angeles, California
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by prendrefeu

Yes, that would indeed be the lightest method!
Exp001 || Other projects in the works.

uraz
Posts: 98
Joined: Thu Dec 12, 2013 9:48 pm

by uraz

The final solution is ditching topcap and expander all together.

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Lewn777
Posts: 396
Joined: Thu Mar 09, 2017 5:35 am

by Lewn777

I had the Cannondale compression plug, but I removed it.
I think there may be a safety issue with using compression plugs that are so small and light. Have a look at this video, the guy is an expert.
https://www.youtube.com/watch?v=8bSnbjHiFXc

addictR1
Posts: 1380
Joined: Sun Jun 10, 2012 1:11 am

by addictR1

The one I have on TMR02 is a full length version. But top cap is alloy. So maybe get a carbon top cap and Ti bolt? Anyone know what type of bolt it would be?


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reedplayer
Posts: 376
Joined: Sat Nov 14, 2015 10:10 am

by reedplayer

Lewn777 wrote:I had the Cannondale compression plug, but I removed it.
I think there may be a safety issue with using compression plugs that are so small and light. Have a look at this video, the guy is an expert.
https://www.youtube.com/watch?v=8bSnbjHiFXc


guys...... :roll:

have a look at post no3, i already posted a link to this video, in particular to the part concerning the cd expander.
...and a link to another video, saying the contrary.

reading (or at least running down the page) before posting obviously is not so popular on this site. :wink:

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Lewn777
Posts: 396
Joined: Thu Mar 09, 2017 5:35 am

by Lewn777

reedplayer wrote:
Lewn777 wrote:I had the Cannondale compression plug, but I removed it.
I think there may be a safety issue with using compression plugs that are so small and light. Have a look at this video, the guy is an expert.
https://www.youtube.com/watch?v=8bSnbjHiFXc


guys...... :roll:

have a look at post no3, i already posted a link to this video, in particular to the part concerning the cd expander.
...and a link to another video, saying the contrary.

reading (or at least running down the page) before posting obviously is not so popular on this site. :wink:

There's nothing to read, just some links hanging in space with no narrative, which I think is why your links failed to grab my attention. :D

by Weenie


C36
Posts: 403
Joined: Fri Mar 03, 2017 3:24 am

by C36

Lewn777 wrote:I had the Cannondale compression plug, but I removed it.
I think there may be a safety issue with using compression plugs that are so small and light. Have a look at this video, the guy is an expert.
https://www.youtube.com/watch?v=8bSnbjHiFXc
As mentioned above with the two videos, quite desagree saying the cannondale is "Not good".
Raoul wants an universal plug, then agree, you need to have full support on all pivots IDs.
Is the Cannondale the universal set? No.
Is it a very good set for the cannondale forks? Yes! The upper cap is perfectly adjusted to the inner diameter then offers perfect support for the upper screw as cannondale do for last 15 years (was the case since caad-5)


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