Portland Design Works Alexander Graham Bell - Black Rise-50mm Densely packed small knobs provide

Densely packed small knobs provide good bite low rolling resistance and responsive acceleration

Can be attached to brake mounts or threaded accessory eyelets

and handling stability

Zip-tie style lock with stainless steel PVC coated ratcheting strap with 3 digit resettable combo lock

Portland Design Works Alexander Graham Bell - Black Rise-50mm Densely packed small knobs provideBuilt to replace a 10mm 1 1 8" headset spacer the Alexander Graham is a classy addition to your bicycle without sacrificing handlebar space. There's nothing like the strong clear sound of a solid brass bell to announce your presence to all. Mounts under the stem replacing one 10mm 1 18 headset spacer Mount Location Headset Color Black