A fancy and beautifully made quill stem that fits 31.8mm center-area handlebars. It grips a bar stronger than single-bolt stems, which for heavy rides on trails and riding Bosco-Tosco handlebars, it's a fine way to go.
The four-bolt face-plater makes it easy to mount or remove a handlebar, even all wrapped or gripped and cabled, belled, mirrored, and fog-horned. It's not a thing you have to do a lot, but if you like to change bars a lot, you'll like the convenience. There is a micro-'tingent of Rivendell people who swap bars like normal people breathe.
On the other hand, there are now four bolts to tighten properly--three more than usual. Pay attention.
Four lengths: 60, 85, 110, and 135cm but because the stem has a slight upward angle, the extension is a little shorter—the Vitruvian-man effect.
This is as good as stems get, and since it's one of the bike parts you'll look at the most often (ideally), it makes sense to go fancy. Actually $130 for a stem made in Tokyo by the handlebar/stem experts is a screaming deal.
Tighten each M5 bolt 4 to 6 newton meters. Get this $30 tool for that.
If you're unsure about which length to get, call us, we may can advise, but the final decision is yours, OK?
min insertion line to the top of the quill - 16cm
angle of extension - 100 degrees
