BSD Grime Grip (Dark Gum) Color:Dark Gum they've offset the valve hole

they've offset the valve hole so that this section can retain its strength

Built around a pro-level geometry in a range of top tube sizes

Thunderbolt Cranks no longer includes a bottom bracket

Fork Offset 36mm 34mm

BSD Grime Grip (Dark Gum) Color:Dark Gum they've offset the valve holeThe Denim Cox signature Grime Grip features a traditional mushroom pattern in the super soft sticky Krayton rubber that you've come to expect from BSD. The design has reinforced slime at the ends for extra durability and a debossed Grime skull with missing teeth, just like Denim. Specs Pattern: Flangeless mushroom Length: 160mm Diameter: 29mm Material: Soft Krayton rubber Bar Ends: Forever bar ends with washers