The chromag bza clamp stemthe bza clamp stem has been developed around the new 35mm clamp interface and is strong enough for downhill and freeride but light enough for your all mountain and enduro set up the wide clamping surface ensures a secure grip on the bars and has been designed to compliment chromags own bza handlebar but works with any 35mm clamp bar the bza stem is cnc machined in whistler and despite it39s strength and burly looks weighs in at just 180 grammes for the 50mm reach