The microSHIFT Arsis11 is the latest instalment of microSHIFT's top-of-the-range Arsis model line. Unsurprisingly it is an eleven speed mechanism.

It has many of the usual features - carbon wrapped outer parallelogram plate, pulley wheels with sealed bearings, titanium small parts, aluminium hanger bolt etc.. But it lacks some of the CNC bling of earlier versions - it is cheeky to say so, but something about its look and even about the logo seems more Ultegra than Dura-ace.

In the modern style, the pulley cage is 10mm longer than on previous versions, but, surprisingly, the weight stays the same.

• Derailleur brands: microSHIFT
• Country: Taiwan
• Date of introduction: 2015
• Date of this example: unknown
• Model no.: R68S
• Weight: 197g
• Maximum cog: 32 teeth (source: microSHIFT)
• Total capacity: 35 teeth (source: microSHIFT)
• Pulley centre to centre: 59mm
• Index compatibility: 11 speed
• Chain width: 3/32”
• Logic: top normal
• B pivot: sprung
• P pivot: sprung
• Materials: Aluminium (including the hanger bolt), with ‘carbon-wrapped’ outer parallelogram plate and titanium cable clamp, cable outer adjuster and adjustment screws.