Apparently 5.5g. Anyone used these yet, think they are the lightest clamps I've seen but they look quite flimsy to me.

<---- linky

I had one of the slightly heavier clamps from Mt Zoom and the band snapped with 3Nm (not enough to stop the seatpost slipping). I got a KCNC clamp at 12g to not have the stress of overly delicate parts for a few extra g's. Interesting looking clamp though!

Haven't seen how much it costs but it's worth a try if it ain't too costly, me thinks. Anthony from Mount Zoom gives great warranty. I had a ordered a carbon bar some months back and it came with a scratch mark (Which was only visible at an angle). I was worried that it was a crack inside but Anthony sent a new one over anyway.

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the picture is a link to the advers, to save you clicking , they cost £17.99

the are "Made from super strong high grade 7076 T6 Aluminium"

A quick look on ebay at other light clamps:
17 g KCN 7075
13 g KCNC clamps are made from 7075-T6
13 g post from 6061
9.8 g MT XZoom 7075

comparison of Al alloys
T6 temper 6061 has an ultimate tensile strength of at least 42,000 psi (300 MPa) and yield strength of at least 35,000 psi (241 MPa).

7075 has an ultimate tensile strength of at least 67 - 78,000 psi (462 - 538 MPa) and yield strength of 54 - 67,000 psi (372-462 MPa).

7075 Tensile Strength, Ultimate 510 MPa 74000 psi and Tensile Strength, Yield 470 MPa 68200 psi

Looks similar to the New Ultimate clamp .
http://fairwheelbikes.com/new-ultimate-seatpost-collar-p-1955.html

Mine weighs 9 grams for a 34.9mm version (others are available) and only cost £10 with postage from USA, turned up in less than a week. It's super tough and hasn't budged a mm since installing. Would highly recommend.

Seller link below

http://www.ebay.co.uk/itm/Ultralight-Se ... 43ae07b348

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Not tried them (ISPs all round) but the other Mt Zoom bits I've got have been reliable so far, evening been DHing with the skewers which i was a little dubious about but they were fine.

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I've got an FRM - 11g one in Titanium, but the seatpost (carbon) slips constantly - avoid !

Despite my initial criticism I decided to give the 6g Mt Zoom clamp a go.

Having lightly greased the outer seattube and inner clamp and also turned it around so the slot faces forwards (all the tricks I could find online for lightweight clamps) it seem to be holding well. My scale is only accurate to the gram and it shows up as 6g... pretty awesome!

Will update if I encounter any problems (touch wood there will be not updates!)

Mine is working with KCNC seatpost, Not sure if it will work as good with my new EC90

I am still looking for a light 30.0 clamp in red for my super six evo.. the stock clamp is already pretty light but i want RED.. we can buy green from cannondale dealers, not red.. any idea? I dont want to pay 100 $$

sent from my galaxy SIII

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Ninja

Run these on every single build with a standard seat post. Never had an issue.

Total weight
31.8mm: 8.4g
34.9mm: 9 g

http://www.procyclingworld.com/servlet/ ... sh-/Detail

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AERO & LIGHT is RIGHT

Cervelo SLC 5890g/12.98 lbs

This is my third season on my New Ultimate clamp. I too had slippage from other clamps but no only has this one been great to use I've experienced no slippage or creaking.

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