Originally Posted by
chagzuki
When I saw the handlebar change in 2017 I was really surprised they'd increased the upsweep. My Brompton is from the early 2000s and the M bar then had a touch more upsweep than later versions; it's not a hand position that makes sense to me. If I were running the M type configuration I'd have to find an alternative aftermarket handlebar.
Searched for upsweep habdlebars logic and found this...
"Hold a pencil in each fist, then hold your arms out in front of you as if you are riding. Bend your elbows out. My pencils point a vector that is not parallel to the ground, i.e. upswept."
"If a riser bar is mounted so the rise is vertical, then the combination of upsweep and backsweep will result in the bar being only backswept from the rider’s perspective."
The problem is I've got a busted left elbow joint and the pencil test shows that it's parallel to the ground. I prefer a lower riding position and I've ordered a flat bar with no upsweep. I also plan to get a mid riser bar someday for touring.