Martin Grainger Posted July 18, 2007 Report Share Posted July 18, 2007 right, so im thinking of buying a new frame.but i like my front end the height it is...so if i keep the same bars and stem and forks....will the height change?if the geo is different will the height rise or fall depending on what the geo is?not sure what frame to get yet but its just something im considering.ta, martin. Quote Link to comment Share on other sites More sharing options...
Landy Posted July 18, 2007 Report Share Posted July 18, 2007 (edited) The height of your bars could change if you get a frame with a different headset angle. but I think most of them are around 72 degrees, so it would not change by much.Edit : I worked it out. just as an example lets say your hub to your bars is 800mm. then on a bike with a 72.5 degree head angle the height would be about 763mm and on a bike with a 71.5 degree angle the height would be 759mm. So in my example measured only from the hub, becouse the wheel is the same on both, changing the head 1 degree changes the height 4mm. Edited July 18, 2007 by Landy Quote Link to comment Share on other sites More sharing options...
Martin Grainger Posted July 18, 2007 Author Report Share Posted July 18, 2007 ah, so if the headtube angle is different it will change...and thats the only reason itll change? Quote Link to comment Share on other sites More sharing options...
Landy Posted July 18, 2007 Report Share Posted July 18, 2007 ah, so if the headtube angle is different it will change...and thats the only reason itll change?yes, thats it. Quote Link to comment Share on other sites More sharing options...
GyTrials Posted July 18, 2007 Report Share Posted July 18, 2007 length of the headtube would affect the height of it as well wouldnt it? ashtons are higher than pitbulls for example,maybe wrong i dont knowSteve Quote Link to comment Share on other sites More sharing options...
Landy Posted July 18, 2007 Report Share Posted July 18, 2007 length of the headtube would affect the height of it as well wouldnt it? ashtons are higher than pitbulls for example,maybe wrong i dont knowSteveYes , it would, your right. overlooked that . if you are running spacers on your current frame or are going to a frame with a shorter headtube you will be good though. Quote Link to comment Share on other sites More sharing options...
thornabytrials.co.uk Posted July 18, 2007 Report Share Posted July 18, 2007 also BB rise can make the front end feel lower..example if your BB rise is only 50mm and your front end is 800mm hub to bars (using example above)you get a new frame BB rise 60mm even though your front end might still be 800mm bars to hub, your stoon 10mm higher on the bike, making bars feel 10mm lower if you get me Quote Link to comment Share on other sites More sharing options...
ben_travis Posted July 18, 2007 Report Share Posted July 18, 2007 if you keep your front end the same height on a different frame then the bike may well just ride shit in comparison to what it could.basically just change your frame with exactly the same components and see how it rides, if you dont like it, adjust it Quote Link to comment Share on other sites More sharing options...
James Quigley Posted July 18, 2007 Report Share Posted July 18, 2007 also BB rise can make the front end feel lower..but it could still be the same height.Also headtube length could affect it. Quote Link to comment Share on other sites More sharing options...
thornabytrials.co.uk Posted July 18, 2007 Report Share Posted July 18, 2007 but it could still be the same height.did you read the rest of my thread or wat?i said even if it is the same hight it will feel lower... which is correct Quote Link to comment Share on other sites More sharing options...
James Quigley Posted July 18, 2007 Report Share Posted July 18, 2007 I know you were correct I was just emphasising the word FEEL.No biggy Quote Link to comment Share on other sites More sharing options...
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