Ultegra SL, noticeably visually different to the standard Ultegra and invisibly Technically different. Ice grey in colour and Super Light in nature, SL is here! The most visible change comes with the colour of the crankset, but whats not immediately apparant is the weight loss and performance gain. The performance improvement is largely due to the lighter, stiffer, machined steel bottom bracket spindle. The weight saved with the SL crankset is 35g over standard Ultegra, the SL is also fitted with aluminium chain ring bolts, ala Dura-Ace, to further emphasize its aim at the performance end of the market.

• Ultegra SL HollowTech II chainset offers a fine balance of light weight and rigidity with incredible shifting performance
• HollowTech II allows the bottom bracket bearings to be spaced wider apart (outboard the frame) enabling the use of larger bearings and an increased axle diameter
• There is also the benefit of easier installation , adjustment and maintenance
• Lightweight and rigid steel bottom bracket axle
• SG-X aluminium anodized chainrings 
• Teeht range: 50/34
• Crank arm length: 170mmm
• Aluminium chainring bolts
• Bottom bracket not included
• Crank arm fixing bolt not included
• Genuine NOS (may have a few marks from storage)
• Weight 797g