Box One™ Chain Tensioners are extruded then CNC-machined from 7075 aluminum for an optimal balance of strength and weight

WEIGHT: 365g / 12

And to tension the brakes

they look incredible and ride even better

Using a PC construction for the body that's lightweight and strong with chromoly axles and unsealed bearings

BSD Blitzed Seat Post long Colour:Black Box One™ Chain Tensioners arePivotal Stump BMX seat post from BSD. Longer 185mm length option for those of you who like a little seat post showing. Works only with pivotal seat posts. ###section### Product Specs TYPE: Pivotal LENGTH: 185mm DIAMETER: 25. 4mm WEIGHT: 122g 4. 3oz