Official Parts list with prices (PDF)
Tires:
Front
110/70ZR17
Rear
160/60ZR17
Battery:
YB12AL-A
BMW 61.21-7 694 431 $$$$
Magna Power CB12AL AFP 60$
Lighting:
Low Beam H3
High Beam H1
Turn Signal
Brake light 1157
Instrument W 5/1.2 - 12V 1.2W (might have to get LED's to use)
Rear License plate light bulbs:
Generic: H6W with BAX9S base <— The base needs to have two pins on each side and draw less than 10Watts
BMW: 63 12 6 910 643 18$
VW/Audi: N 104 455 02
Mercedes: 4B100-228353 or Y4000-165842
Sylvania/OSRAM: 64132 or 64132L
Philips: 12357 or 12357LL
Narva: 68161 or 68162
NAPA: 68161
Air filter:
BMW 13717659972
BMC BM413/01 (european K&N type airfilter, washable)
UniFilter (for G650x series ) NU 7309 [ needs small modification to fit ]
Oil Filter:
BMW 11117658311 (sold as a kit with new o-rings etc)
HIFLOFILTRO HF151
Parts Unlimited 07120108
K&N KN-151
Brakes:
Front Disc
BMW
Braking BW07FLD (race use)
EBC MD650RS
Rear Disc
BMW
EBC MD651
Front Pads
BMW Front Pads: 34117651958 $61.00
EBC FA209/2 or FA209/2HH
SBS 674
Vesrah VD958
Ferodo FDB2006
Rear Pads
BMW Rear Pads: 34212345449 $ 53.00
Vesrah VD958JL or VD958JL
TurfStop TSRP874
EBC FA213 or FA213HH
SBS 675
Vesrah VD953
Ferodo FDB2005
Fork Seals:
GS and GS share the same parts
BMW
Spark Plug:
BMW
NGK D8EA
Aftermarket:
NGK DR8EIX-9 (regular Iridium)
NGK DPR8EIX-9 (extended tip Iridium)
Lambda/O2 sensors: http://www.lambdasensor.co.uk/main/cyclentk.htm
These run about $100 USD less than getting them from BMW.
