This sprocket first appeared in the S&M 2005 catalogue as the Bashguard Sprocket available in 33t, and then simply as Guard Sprocket in the 2006 catalogue when it began being offered in 25, 28, 30, 33, 36 and 39t. Fast forward to June 2024 when S&M Pro Aryei Levenson started riding a used 33t he got from Shad at Goods BMX and single-handedly created the demand that led to this slightly updated re-issue.

On this current version S&M have widened the crank clearance cuts a little, updated the teeth to a modern profile, and offset the teeth as well for better chain alignment. They also added more engraving and released three additional colours including a Matte Purple to match Aryeis signature frame (coming soon). And of course they still made it themselves in house in the good ol US of A.

• Made in USA
• Four mounting positions
• 1/8 teeth
• CNC machined 6061 T-6
• 15/16 (24mm) center bore (19/22mm steel hat washers included)
• Compatible with 19mm, 22mm and 24mm spindles

• Sizes
• 25t, 28t, 30t, 33t, 36t, 39t

• Weight
• 25t 4.5 oz
• 28t 5.5 oz
• 30t 6.4 oz
• 33t 7.7 oz
• 36 8.9 oz
• 39 10.1 oz