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PostPosted: Fri Sep 21, 2012 1:19 am 
retrobike rider
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Joined: Sun Sep 23, 2007 11:22 pm
Posts: 7305
Location: Hove
highlandsflyer wrote:
Using a bolt in arrangement rather than clamp means a change of problem, rather than removal of a problem.

Ring clamping a carbon tube is one thing, exposing a delicate thin carbon wall to localised flex is another.

Nevertheless, the bike industry must be convinced that it is significantly the lesser of two evils. Things like direct-mounts fm don't just appear out of thin air. Shimano wouldn't have developed them unless the major frame builders/designers had gone to them and said it was what they needed for carbon frames. My guess is they know what they're talking about.


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PostPosted: Fri Sep 21, 2012 3:42 pm 
Old School Grand Master
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Joined: Wed Apr 12, 2006 12:33 pm
Posts: 11105
Location: The Home Of Mountain Biking, And All Great Things.
I don't think the spectre of over tightening was the reason, more the new shapes of frame making it hard to do anything else. it applies to plenty Alu bikes and steel sussers.

You are right enough, they know what they are up to. Never doubted that. :)


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PostPosted: Fri Sep 21, 2012 4:24 pm 
MacModerator
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Joined: Fri Jul 14, 2006 8:59 pm
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Location: Sol Kitts
I believe bolt ons are lighter and better shifting (stiffer) they also allow clearance for tight rear wheels. Certainly starting to be spec'd on 29ers to allow for shorter chainstays.


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PostPosted: Fri Sep 21, 2012 8:55 pm 
Retro Guru

Joined: Wed Jan 18, 2012 12:37 pm
Posts: 425
Location: Derby
If your after a race bike then the whippet is a good option, if its an all round bike your,re after I would look at the carbon 456. The 456 is a bit heavier but much nicer to ride as it seems to have a more forgiving rear end


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PostPosted: Wed Sep 26, 2012 11:48 pm 
Old School Hero
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Joined: Tue Mar 20, 2012 5:48 pm
Posts: 189
Location: Not Far From Sarf Lahndarn.....
dvatcmark wrote:
If your after a race bike then the whippet is a good option, if its an all round bike your,re after I would look at the carbon 456. The 456 is a bit heavier but much nicer to ride as it seems to have a more forgiving rear end


I was looking for a racier style frame, although i will be riding it all day if i can :wink: I'm looking for something that will whip through singletrack and fly up hills and handle the odd Welsh trail centre trip once a year.
Most of the time i ride the North Downs in Kent.
The only thing bothering me really is the top tube length, it's 2 inches longer than i'm used to. I can sort that out with a shorter stem, but the wheelbase will still be longer- how will that affect the ride?


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