Question: what is upsweep on bmx bars?
Answer: Upsweep and Backsweep Upsweep is the amount that the bars bend upward from the top bend to the outside of the bars. We see some flatland bars coming with 0-degrees of upsweep and we see some with 4-degrees of upsweep. It doesn't seem like much, but those few degrees can really be felt in your wrists.