J.ACK II Ultegra Di2 – December 2022
Bespoke Specification
- J.ACK II Custom Geometry frame
- ÆRA All Road Disc Dynamo Fork
- Hand-brushed finish
- Engraved headbadge
- Shimano Ultegra 2x Di2 groupset
- ÆRA carbon seatpost
- Pro Vibe Alloy Handlebars
- Pro LT stem
- BSA Threaded Hope Bottom Bracket
- Brooks C13 carved saddle
- ÆRA AR|30 alloy wheels, hand-built in our workshop with Son dynamo front hub and ÆRA rear hub, Sapim D-Light spokes with Sapim brass nipples
- Continental GP5000TL 32mm tubeless tyres
- Fizik soft touch bar tape
- Supernova E3 triple dynamo front light
- Son rear dynamo light
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