The Timber Bolt On Bell is your ideal companion for city streets to towpath trails: your new, friendly handlebar-mounted Cowbell. This is the New Updated 4.0 Version.If you find yourself using your bell on nearly every ride, this is the model for you.The Timber Bolt On Bell is identical to the original model, except it features a tight, durable mount that won\'t spin, shake or rattle on your bars. Similar to a GPS or Garmin mount, this bell uses a flexible nylon band that tightens to your bars with a 5mm hex bolt. The band itself is 31.8 mm in diameter, the same as the wider part of your bars near the stem. It also includes a flexible 22.2mm shim, for mounting your bell securely near your grips, closer to your hands. (For oversize and DH bars, you will want to use the shim and mount near the grips.)Installation is easy. There is no need to remove the grips, brakes, etc. Just flex the clamp open and slide it onto your bar.NEW since April 2021, Timber has beefed up everything! With a much stronger on/off lever and a new steel collar internal shank where the bell meets the plastic, this bell won\'t break even in the gnarliest crashes. Plus a longer life internal cable.Timber Bolt On Bell FeaturesMotion-activatedPassive, non-aggressive method of communicationSimple on/off lever controls the internal clapperSlide it down for on, up for offSet it in between for a quieter soundMounts on your handlebars within easy reachFits 22.2 and 31.8 mm handlebarsMount it on the bars for occasional useMount it directly on the grips for instant useSolid brass bell has a crisp, clean soundSleek black finish