Trek Thruskew

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ratherbeintobago
Posts: 1096
Joined: 5 Dec 2010, 6:31pm

Trek Thruskew

Post by ratherbeintobago »

Anyone know anything about the above?

As far as I can work out it's a 'safety' skewer with an open dropout at one side and a captive bolt at the other.

What I don't know (and documentation seems to be lacking) is whether the captive bolt is threaded for normal QRs or not.

Anyone able to advise?
le.voyageur
Posts: 63
Joined: 10 Jan 2017, 8:30am

Re: Trek Thruskew

Post by le.voyageur »

according to this description, the dropout "loops all the way around the skewer" so exactly the same as a ThruAxle (TA) then.
https://www.cyclingabout.com/2019-trek- ... ring-bike/
I have them on my new(ish) bike and they're good but no better than the QRs on my other bikes.
ratherbeintobago
Posts: 1096
Joined: 5 Dec 2010, 6:31pm

Re: Trek Thruskew

Post by ratherbeintobago »

A picture I’ve seen suggests one side is open - is that right?

And do you know if the captive bolt is standard pitch or different?
ratherbeintobago
Posts: 1096
Joined: 5 Dec 2010, 6:31pm

Re: Trek Thruskew

Post by ratherbeintobago »

Bump
ratherbeintobago
Posts: 1096
Joined: 5 Dec 2010, 6:31pm

Re: Trek Thruskew

Post by ratherbeintobago »

Right: some answers:

Seems to be a system with a captive nut on the NDS dropout (which is open as per normal dropouts) and a closed dropout on the DS. To drop the wheel out, the skewer needs to be unscrewed and then withdrawn all the way out.

As supplied the bike came with a 4mm Allen head skewer. The captive bolt appears to be threaded for any normal skewer.
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