Promax P-1 Pro BMX V-Brake Caliper - Long Reach (108mm) - Blue 46t They are made out of

They are made out of anodized 7000-series aluminum

Length: 125mm

110mm chainrings and has a 19mm bore

Color: Blue anodized

or 17mm wrench (or adjust them punk-rock style with an adjustable wrench)

Promax P-1 Pro BMX V-Brake Caliper - Long Reach (108mm) - Blue 46t They are made out ofThe Promax P 1 Linear Long Pull Brake is a lightweight, race proven BMX brake balancing strength, durability and performance. Contructed of cold forged 6061 T6 aluminum alloy, these calipers ofer 35 millimeters of vertical brake pad adjustmentabout 30 percent more adjustability than most linear pull brakes. Includes new, proprietary, two tone, dual compound, B 2 Air Flow one piece brake shoes developed by Promax specifically for the P 1 brakes. Arm