R J.ACK III 2×12 Di2 Dura-Ace Di2 – March 2025
Bespoke Specification
- R J.ACK Disc Frame – Custom geometry 54cm
- Handbrushed frame finish
- Engraved headbadge
- ÆRA carbon fork
- ENVE carbon stem
- ENVE carbon handlebar
- Shimano 2x12s Dura-Ace Di2 groupset
- Chris King Droplet 2 headset and BSA bottom bracket
- ÆRA AR|46 carbon rims with Chris King R45D red hubs
- Continental GP5000S TR 30mm tubeless tyres
- ÆRA 27.2mm carbon seatpost
- ÆRA 31.8mm seatpost clamp
- Fizik soft touch bar tape
- Brooks c13 saddle
Bicycle Technology
ÆRA Components
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