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Turning myself into the stem police...(7 posts)

Turning myself into the stem police...oldschool
Mar 24, 2003 12:36 PM
Some questions for the 'authorities'... (-:
1. Do the stem and seat post setup necessarily mean this frame (58 Gunnar) is too small for me?
2. Is a 90 degree stem also called 'zero rise' even though it provides a rise due to the head tube angle?
3. Are there manufacturers (other than custom) who make frames that are 'taller' than they are 'long' (i.e., longer seat tube w/out lengthining TT)?

http://gallery.consumerreview.com/webcrossing/images/bike001(4).jpg
Another pic...oldschool
Mar 24, 2003 12:37 PM
http://gallery.consumerreview.com/webcrossing/images/bike002(4).jpg
re: Turning myself into the stem police...tarwheel
Mar 24, 2003 1:31 PM
Having to use spacers and/or a riser stem has very little to do with whether the frame fits or not, at least not from the photos you posted. If the top and seat tubes are correctly sized and the bike is comfortable, then it fits. However, if you prefer your handlebar that high (or higher), you might be better served using a riser stem. With a 105 stem, you could eliminate some of the spacers or raise the handlebar even higher. Some good options in 105 (+15) stems include Salsa SUL, Profile H2O and Ritchey Pro (73 stem flipped). Changing from a 90 to 105 stem will raise the handlebar about 1" or eliminate the need for about 2-3 cm of spacers.
Can't tell from the photo..MR_GRUMPY
Mar 24, 2003 1:44 PM
How many spacers do you have ? The seatpost looks about right and the bar drop isn't too bad.
Can't tell from the photo..oldschool
Mar 25, 2003 6:10 AM
4 spacers...simpy because the seller didn't want to cut the stearer tube until he had a buyer. Theres a couple cm between the stem and lock nut as well. The configuration seems pretty similar to many threadless setups I've seen lately; but mine looks different because there's a quill stem invovled.
re: Turning myself into the stem police...geeker
Mar 24, 2003 3:30 PM
"Is a 90 degree stem also called 'zero rise' even though it provides a rise due to the head tube angle?"

No, I think that 73 degrees or so would be 'zero rise'.

"Are there manufacturers (other than custom) who make frames that are 'taller' than they are 'long' (i.e., longer seat tube w/out lengthining TT)?"

Yes, but you have to consider the seat tube angle. For instance, a 58cm top tube with 74 degree seat tube angle winds up being a longer effective top tube than a 59cm tt with 72 degree sta. I only look at larger frame sizes (eg 61cm st), but Euro brands like Merckx and Pegoretti seem to have shortish top tubes and slack st angles, giving short effective tts.
re: Turning myself into the stem police...jtolleson
Mar 24, 2003 3:58 PM
Actually, you WILL here a 90 stem referred to as a "0" even though the effect IS to give some rise (because of the angle of the headtube).

As for the desire to get the bars up without gaining too much tt length, compact geometry helps do some of that. They extend the headtube and then use a sloping top tube.

But there's no shame in a 90 stem and a spacer (or even a riser stem) to get what fits (within reason).