The DMR Defy50 stem is the perfect stem for your Trail/All mountain build. It features a low stack height, Top-Close clamp design, 50mm reach and 23.5mm rise. The DMR Defy 50 stem has a wide clamping area for bar stability and an internal steerer clamp to keep your knees safe out on the trail. Features BUILT TOUGH – CNC 6061 aluminiumBUILT RIGHT – 50mm reach, great for all bikesBUILT TALLER – raises your bars 23.5mm, for extra confidenceINTERNAL CLAMP – clean design, rounded-out profileCNC MACHINED – The body has been slimmed down to shave 40g off the weight without sacrificing the wide bar clamping area, internal collet steerer clamp and strength.TEAM DESIGNED – rider perfected Specifications • ø31.8mm clamp• CNC 6061 Alloy DMR Defy 50 stem• Top-Close clamp design• 31mm Stack height• 50mm reach• 23.5mm rise from base of stem• 1 1/8"• 189g• Stem cap includedThe body has been slimmed down to shave 40g off the weight without sacrificing the wide bar clamping area, internal collet steerer clamp and strength. DIMENSIONS [95mm Long / 55mm Wide / 54mm Tall] Steerer clamp bolts:Thread = M5Thread length = 29mmDiameter of bolt head = 8mm Handlebar clamp bolts:Thread = M5Thread length = 15mmDiameter of bolt head = 8mm