The M30 crank spindle standard is exclusive to Praxis and is unique as it provides a 30mm ID drive-side bearing and a 28mm non-drive bearing

5 - As this tyre is only a 2 inch

2mm outside diameter bottom brackets

It is made just like a tool should be

Other Technology:

Leatt MTB Gravity 4.0 Long Sleeve Jersey - XL - Onyx Envelope Shipping The M30 crank spindle standardLight, cool and awesome looking! The Leatt 4. 0 jersey is the premium race jersey, made from ultra light, stretch mesh fabric that is MoistureCool wicking and has air channels. The tailored race fit stretch material can be worn with or without body armour and of course, is neck brace ready! The elbows of the jersey are reinforced with Brush Guards, an ultra thin flex film that is feather light and increases scratch and abrasion resistance properties.