3/32in Shimano splined, 9 speed spaced. Stack 'em up and run them with a mech, or by themselves in a single speed set-up. Assymetric for chainline tuning. Groove Armada tooth cleaning system and a wide inner / bottom edge so it doesn't cut into your expensive freehu - wide based cogs spread the load so they don't dig into the freehub body.
Base is 4mm wide - plenty wide enough not to dig in.
Reassuringly substantial and, as stated, has quite a wide base. No perceivable wear after a few thousand kilometres and have had no problems with chain drop. Perhaps a little on the expensive side.
The full range of Groove Armada sprockets should be back in stock within the next 2 weeks.
Any idea when the 16t will be back in stock?
Hi Kevin, apologies for the delay, 16t are due mid December.
please add a 16th as in photo