Box One Delta 31.8mm Big Bore Stem temp-tag-del the primary difference is that

the primary difference is that the top cover and the fork race have a 1" opening so that you can mount this headset in a frame with a 1 1/8" headtube and run a 1" steer-tube fork

Anodized Finish

COMPATIBILITY

120TPI casing

Improvements over the Clutch V1:

Box One Delta 31.8mm Big Bore Stem temp-tag-del the primary difference is thatThe Box Delta 31. 8mm Big Bore Stem is designed specifically for BMX racing. It pairs well with Box's Jet, Triple Taper Alloy, or Box One Chromoly (aka Maximus) handlebars and with them creates one of the stiffest combos around. Putting it all together will allow you to harness and better control your bike, which should translate to faster times. Box, in their never ending quest to design parts that are the stiffest and the lightest have created here