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PostPosted: Tue Sep 18, 2012 6:59 pm 
Old School Hero
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Joined: Tue Mar 20, 2012 5:48 pm
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Location: Not Far From Sarf Lahndarn.....
http://www.on-one.co.uk/i/q/FROOCWHND/on_one_carbon_xc_whippet_un_decaled_frame

I'm getting one of these :P

I really fancy a carbon hardtail and this ticks all the boxes.
Looking at it i'll need a new integral headset, a bolt on front mech and a shorter stem as the top tube is two inches longer than the norm but now iv'e noticed the bottom bracket is a bit weird. Will my Shimano Hone set up work? On One say it needs a BB 92 press fit- whats the difference?
Who owns one, what's it ride like?

Show me yours :wink:


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PostPosted: Tue Sep 18, 2012 7:05 pm 
Gold Trader / rb Rider / Special
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Pretty sure i cam across bb92 the other week.
Like this:
Image

Just a press fit bb. Will work fine as long as you get a correct size axle one.


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PostPosted: Wed Sep 19, 2012 11:52 am 
Old School Hero
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Location: Not Far From Sarf Lahndarn.....
Quote:
Just a press fit bb. Will work fine as long as you get a correct size axle one


Does it matter if it's an FSA one or does it have to be a Shimano one?

Press fit BB's are new to me :lol:


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PostPosted: Wed Sep 19, 2012 12:56 pm 
Retro Guru
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I didn't know you could get bolt on MTB front mechs!!!


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PostPosted: Wed Sep 19, 2012 3:12 pm 
retrobike rider
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JamesM wrote:
I didn't know you could get bolt on MTB front mechs!!!

It's the modern form of an E-fit mech isn't it? I don't think it's a very good idea to put a clamp around a carbon tube.


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PostPosted: Thu Sep 20, 2012 12:25 pm 
Old School Hero

Joined: Thu Jul 19, 2012 8:43 am
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Location: North East
Anthony wrote:
JamesM wrote:
I didn't know you could get bolt on MTB front mechs!!!

It's the modern form of an E-fit mech isn't it? I don't think it's a very good idea to put a clamp around a carbon tube.


Clamps around carbon tubes, who would of thought carbons bars would catch on?

The front mech clamp would be the least of my worries.


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PostPosted: Thu Sep 20, 2012 12:27 pm 
Old School Hero

Joined: Thu Jul 19, 2012 8:43 am
Posts: 189
Location: North East
Anthony wrote:
JamesM wrote:
I didn't know you could get bolt on MTB front mechs!!!

It's the modern form of an E-fit mech isn't it? I don't think it's a very good idea to put a clamp around a carbon tube.


Clamps around carbon tubes, who would of thought carbons bars would catch on?

The front mech clamp would be the least of my worries.


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PostPosted: Thu Sep 20, 2012 4:43 pm 
retrobike rider
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Sketchyxup wrote:
Clamps around carbon tubes, who would of thought carbons bars would catch on?

The front mech clamp would be the least of my worries.

I don't agree. I've seen plenty of steel and aluminium seat tubes damaged by over-tightened front mech clamps, but I've never seen a handlebar damaged by either the stem clamp or the shifter clamps - bar ends yes, but that's because it's weaker at the very end of the tube. I think the explanation is that handlebars are a thicker gauge than a seat tube (and carbon handlebars are generally aluminium-reinforced).


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PostPosted: Thu Sep 20, 2012 7:51 pm 
Gold Trader / rb Rider / Special
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Dont quite me on it but as far as i recall the fsa mtb cranks/bb's use 24mm axle. A few others also, all you need is 24mm axle. Raceface/shimano/gusset/hope (amongst others).


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PostPosted: Fri Sep 21, 2012 12:00 am 
Old School Grand Master
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Location: The Home Of Mountain Biking, And All Great Things.
Anthony wrote:
Sketchyxup wrote:
Clamps around carbon tubes, who would of thought carbons bars would catch on?

The front mech clamp would be the least of my worries.

I don't agree. I've seen plenty of steel and aluminium seat tubes damaged by over-tightened front mech clamps, but I've never seen a handlebar damaged by either the stem clamp or the shifter clamps - bar ends yes, but that's because it's weaker at the very end of the tube. I think the explanation is that handlebars are a thicker gauge than a seat tube (and carbon handlebars are generally aluminium-reinforced).


Bars certainly are much thicker gauge than seat tubes.

I can't recall seeing any frames 'damaged' by overtightened front mechs though, just paint.

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.

:)


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