Quill stem to new threadless type

[redfoxglove]

(06-03-2013, 10:38 PM)painkiller Wrote:  you will obtain rise by the stem choice. 7 degree stem not much rise, 30 degree stem more rise and so on. then figure extension 60mm not much, 120mm more and so on. more extension will raise the bars and also reach so keep that in mind too. If you know what fit you prefer it will be easier to figure out what you need to obtian what you want. Like I know for myself I want my seat to be about even with my bars and prefer about 27in. from the center of my seatpost to the center of my bars. Try to think along those lines that work for you. then you will know what to buy. a protractor and ruler will help

got it. and by "stem" you are meaning the adapter, and by extension you are meaning the clamp/faceplate, right?

I can make a good guestimate of rise by noting how high I have raised the handlebars that puts them above the minimum/maximum mark on the existing stem.

yes, I will measure my reach from the center seat post to center of bars, I'll use my Trek 520 for the model. I've just been going by feel, probably better to have a number as one more data point.

This mod bike always was too short in the reach. There are so many more options in bikes these days! Back in the day I bought this bike, it was the only bike close to my size of any quality to be had for hundreds of miles around...rural north Florida.

thanks, painkiller

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(06-03-2013, 10:23 PM)painkiller Wrote:  One note to mention redfox, this type of mod is not exactly a weight weenie decision. The quill to threadless adapter is kinda heavy in and of itself, then if you choose an adjustable stem to go with it it is even heavier. I recommend on the stem is to decide rise and extension and go for non adjustable stem to suit. Most people I know never change them anyways once they set them

Yeah, weight is not the top concern, yes, I want to go fast but not competitive to where a couple grams shaved off is going to make a difference. At this point. Function is the key value in this case, and the limits of what the existing bike offers. I don't really want to replace the fork at this time.

On ebay I saw a quill adapter that has the adjustable radius type of clamp or extension, similar to what's on my Giant hybrid commuter. It looks like a big knuckle in the middle of the stem that rotates into different positions. It allows all kinds of variations of angle, extension, and so on but it is quite heavy. And I find, like you say, that I adjust it to something I like and it stays there.

good comments, helps in the thinking process, thank you!