Model B910E. The cassette has a shoulder on the right side which will not screw fully in unless C – you fit an E-type front derailleur (bb mount plate).
WEEROCK Neco Bicycle Headset Steel Bike Threaded Front Fork Bowl Set, Silve
Neco Semi-Integrated Headset for 1.5" - 1-1/8" Tapered ZS44 Upper ZS56/40 Lower
Neco Semi-Integrated Headset - 1-1/8" Straight - ZS44 Upper - ZS44/30 Lower
Neco 1" Headset - EC30/25.4 Upper EC30/27.0 Lower - Threaded Steerer - Silver
Neco External Cup Headset for 1-1/8" Threadless Steerer EC34 Upper EC34/30 Lower
Neco 1" Steel Bicycle Headset - EC30 Cups - 1" Threaded Steerer - Silver
