April 11, 20179 yr Hey there, I have the Zephyr-B (old version), and the handle bars are too high. Is it possible to adjust the stem lower into the bike frame? How would I go about making this adjustment? I can't seem to dismantle the stem portion of the bike. I can see that I can lift up the "neco" cone which seems to hide something... Any help would be great!
April 11, 20179 yr Hello Hubear, Your Zephyr-B has a Promax adjustable stem. It is attached to the fork's steerer tube with a wedge nut. The range of adjustment in height is about 4 inches. To adjust the height, first loosen the wedge nut. To loosen the wedge nut: 1) Slide down the safety latch (arrow), lift up the locking arm (yellow sticker), lower the handlebars to expose the stem bolt. 2) Use a long handle 6mm allen key, loosen the bolt, 3 turns anti-clockwise. 3) Push the stem into the steerer tube to where you want, tighten the wedge nut really well. The wedge nut is similar to this: http://i.ebayimg.com/images/a/(KGrHqMOKkUE1stlLZTrBNlb4Y6SYg~~/s-l300.jpg
April 12, 20179 yr Author That worked perfectly!!! - I managed to adjust the stem to the lowest position and now I ride with a lot more control. Many many thanks!
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