TT bike

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jowwy

Not here offten enough to argue
Could i use the frame of my giant defy 4 to build an half decent TT bike??
 

Rob3rt

Man or Moose!
Location
Manchester
That depends on the bikes geometry and your anatomy. Optimal TT bike sizing is a bit more nuanced than road bike sizing. For example, the reach on a road bike is a product of both torso and limb length. On a TT bike, limb length has less impact on reach due to the prone position, thus the length of your torso will influence the reach needed moreso. This is why you here terms such as "long and low", "tall and short" being used to describe various TT frame.

However you could in most cases get somewhere decent. Definitely good enough to race on and probably to a decent level.
 
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jowwy

Not here offten enough to argue
Its more to try and see if i like it doing it or not. Mate of mine does tt's on he asked me to give it a go as i got pretty good flat road speed and stamina, thinks i would be pretty good at it if i gave it a go. I'm training through the winter to drop a few pounds, so just thinking of making some changes to the defy rather than shell out straight away on a dedicated machine
 

Rob3rt

Man or Moose!
Location
Manchester
Just buy some clip on bars and whack them on then (Zipp Vuka Alumina are probably the more versatile available and despite being Zipp, they are priced fairly acceptably). Will probably also need to push the saddle forward and up. May have to take some spacers from under the stem and put them above as well. Such tweaks and then some fine tuning should get you a good portion of the speed gain.
 
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jowwy

Not here offten enough to argue
Just buy some clip on bars and whack them on then (Zipp Vuka Alumina are probably the more versatile available and despite being Zipp, they are priced fairly acceptably). Will probably also need to push the saddle forward and up. May have to take some spacers from under the stem and put them above as well. Such tweaks and then some fine tuning should get you a good portion of the speed gain.
Cheers for the help rob3rt. Will looking into the changes, would an inline seatpost help, as my saddle is already forward all the way due to short thigh length, but long lower legs
 

Rob3rt

Man or Moose!
Location
Manchester
You will have to wait and see what the position is like with the clip-on bars to know where the saddle needs to go really.
 
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jowwy

Not here offten enough to argue
You will have to wait and see what the position is like with the clip-on bars to know where the saddle needs to go really.
Ok no probs, going to get some clip ons and stick it on the turbo to get used to the poisition over winter
 

Mr Haematocrit

msg me on kik for android
make sure your bars support clip on's
Zipp's own bars are not all clip on compatible, the bars which are have alloy inserts at the point where the clip on's mount
 
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jowwy

Not here offten enough to argue
If your running carbon bars, make sure they support clip on's
Zipp's own bars are not all clip on compatible, the carbon bars which are have alloy inserts at the point where the clip on's mount
No carbon at the moment, just standard alloy bars
 

Mr Haematocrit

msg me on kik for android
Might be worth checking the model of bars you are running, just to be safe.
I'm not aware of what is different between bars suitable for clip ons and not..... but if the bars break its going to end messy.
The fear is enough to make me check.. lol
 
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jowwy

Not here offten enough to argue
Might be worth checking the model of bars you are running, just to be safe.
I'm not aware of what is different between bars suitable for clip ons and not..... but if the bars break its going to end messy.
The fear is enough to make me check.. lol
I will, during the winter it will just be on the turbo, then ill buy specific bars for next years tt's
 
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