10-pack – sku # M-OSRB-USA-10
100-pack – sku # M-OSRB-USA-100

Made in the USA, offset M5 bolt rack bosses provide additional material on one end to ensure that whatever you attach to the boss clears the seat stay. No more spacers! Steel.

Save 10% by ordering the 100-pack.

Please note that our latest batch came in looking more grey than the silver that’s shown in the pic.

OD at widest – 9.4mm
OD at narrowest- 6.4mm
Radius of hourglass shape- 8mm
Overall length – 14.85mm

4g (each) – These measurements are taken from representative bosses and may vary.

Made in Oregon, USA