Incoming Crumpton SL
Moderators: MrCurrieinahurry, maxim809, Moderator Team
Great looking bike you got coming to you. love how the bike is tube to tube, but the joints look so clean. is it internal cabling? how about the dropouts - single piece molded and bonded or bolted?
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- ScuderiaDouroux
- Posts: 112
- Joined: Wed May 02, 2012 8:33 pm
- Location: Los Angeles, California, USA
Is it just me, or does the bottom bracket area of this frame look really lean (not very reinforced)?
Let us know how stiff it feels when sprinting after the bike is built.
Let us know how stiff it feels when sprinting after the bike is built.
Long live the horizontal top tube, standard crankset, and Italian threaded bottom bracket.
Yes. I like this paint scheme a lot.
The BB area looks fine to me. I think going by the size of the BB area as an indication of stiffness is a big over simplification.
The BB area looks fine to me. I think going by the size of the BB area as an indication of stiffness is a big over simplification.
- ScuderiaDouroux
- Posts: 112
- Joined: Wed May 02, 2012 8:33 pm
- Location: Los Angeles, California, USA
Of course it is. However, considering the fact that I will never ride one of these frames, I had to at least ask.
"If it looks like a duck..."
"If it looks like a duck..."
Long live the horizontal top tube, standard crankset, and Italian threaded bottom bracket.
ScuderiaDouroux wrote:Is it just me, or does the bottom bracket area of this frame look really lean (not very reinforced)?
Let us know how stiff it feels when sprinting after the bike is built.
That BB is the work of a pro!!! look at a spin or biber frame, you will also not see a bulky BB area and they will build it the same way for guys that are strong sprinters. i dont know if you can sprint like erik zabel but he had no problems with the spin he used in the olympics or part of his career disguised as a colnago.
sorry to post pic of another frame. i think the crumpton frames, just get better and better. i just wish he would stop doing the bolted dropouts, it may make no difference (performance wise), but we are beyond that when your doing a custom frame and aesthetically its huge for me. i just prefer bonding the carbon seat/chain stays to a carbon dropout.
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- Posts: 212
- Joined: Mon Mar 09, 2009 12:51 am
- Location: Tokyo
Congratulations! Great looking frame...What else would you expect! I'll look forward to seeing the final build.
Regarding BB stiffness, you wont have to worry about flex. Nick knows what he is doing. Bigger isn't alaways better!
Cheers,
Pete
Regarding BB stiffness, you wont have to worry about flex. Nick knows what he is doing. Bigger isn't alaways better!
Cheers,
Pete
ScuderiaDouroux wrote:Is it just me, or does the bottom bracket area of this frame look really lean (not very reinforced)?
Let us know how stiff it feels when sprinting after the bike is built.
Again, the BB itself NEVER flexes! It's the tubes that hold it that does. So in this case the chain stays, seat tube and especially the down tube. These three are subjected to torsional and bending forces when the bike is ridden. Not the BB itself. Same with the head tube.
I love the bike!
- prendrefeu
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- Joined: Wed Oct 31, 2007 10:32 pm
- Location: Glendale / Los Angeles, California
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Tasty!
Exp001 || Other projects in the works.
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ScuderiaDouroux wrote:Is it just me, or does the bottom bracket area of this frame look really lean (not very reinforced)?
Let us know how stiff it feels when sprinting after the bike is built.
the wrap is tapered and is over .080" thick at its thickets point. 16 plys of IM 118GSM material there. but as others suggested, it is the tubes that flex, not the joint.
i like the taper and its ability to distribute a heavy load as opposed to dropping off and creating a composite variation of the dreaded "stress riser". and it looks nice