Merlin currently doing Ultegra Di2, the one you an upgrade, for £999 which is incredible
They're doing a conversion kit for either £499 or £750 depending on cables and charger I think
fatbirds don't sell SRAM and only seem to sell Campagnolo apart from the UltegraDi2
Sigma Sport sell SRAM Red Black for £999
Merlin currently doing Ultegra Di2, the one you an upgrade, for £999 which is incredible
They're doing a conversion kit for either £499 or £750 depending on cables and charger I think
fatbirds don't sell SRAM and only seem to sell Campagnolo apart from the UltegraDi2
Sigma Sport sell SRAM Red Black for £999