coolbeen Posted February 25, 2007 Report Share Posted February 25, 2007 Hi i need a higher stem on my control 04. i am using a control stem that is 100*5 i was think of getting one of the hifi stems but i need to know the BB rise, so can someone tell me what the BB rise is or tell me how to find it please. Quote Link to comment Share on other sites More sharing options...
Greetings Posted February 25, 2007 Report Share Posted February 25, 2007 (edited) Well, if you've got the frame with you why not measure it?Just measure the height of the bb from the ground and subtract 330mm from it. Edited February 25, 2007 by Inur Quote Link to comment Share on other sites More sharing options...
Prawny Baby Posted February 26, 2007 Report Share Posted February 26, 2007 the 04 control frames are listed as 20mm BB rise, so you may well want a slightly higher stem on it..... Quote Link to comment Share on other sites More sharing options...
hubertus Posted February 26, 2007 Report Share Posted February 26, 2007 Yes it's BB +20mm.I ride this frame (excellent frame by the way) and I used to have a 100mm x 5deg stem. I changed it to a 130 x 15deg and it's much better but I wouldn't go as far as a hi-fi stem! Quote Link to comment Share on other sites More sharing options...
coolbeen Posted February 26, 2007 Author Report Share Posted February 26, 2007 Yes it's BB +20mm.I ride this frame (excellent frame by the way) and I used to have a 100mm x 5deg stem. I changed it to a 130 x 15deg and it's much better but I wouldn't go as far as a hi-fi stem!Thanks mate but the hifi stem on tarty comes in different sizes, i was thinking of getting the echo hifi 130 x 15. Quote Link to comment Share on other sites More sharing options...
coolbeen Posted February 26, 2007 Author Report Share Posted February 26, 2007 Well, if you've got the frame with you why not measure it?Just measure the height of the bb from the ground and subtract 330mm from it.Sorry to say this mate it can't be 330 because my brothers A2 is 55 high and what i got and then did what you said does not give 55. Quote Link to comment Share on other sites More sharing options...
Ash-Kennard Posted February 26, 2007 Report Share Posted February 26, 2007 (edited) just work out what 13" is in mm thenEDIT: did it for you13 inches = 330.2 millimeters Edited February 26, 2007 by ash-kennard Quote Link to comment Share on other sites More sharing options...
Greetings Posted February 26, 2007 Report Share Posted February 26, 2007 It doesn't have to be, I've yet to come across a frame in which the geometry is as it should be. 330mm is the height of the hubs from the ground and bb rise is how much higher the bb is from the hubs. It's pure maths really, my A1 has a 62mm rise and a 18mm longer wheelbase than it should have. Quote Link to comment Share on other sites More sharing options...
Ash-Kennard Posted February 26, 2007 Report Share Posted February 26, 2007 yeah but thats probably using longer forks than what it was made with Quote Link to comment Share on other sites More sharing options...
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