Shimano BB-UN300 Bottom Bracket - English 68 x 122.5mm Spindle Square Taper JIS 50mm Chainline MFPN=BB 609 LLU MAX BO-BX } Small 25mm outer diameter

} Small 25mm outer diameter to fit small hands

1/2” x 1/8” size

}RockShox DebonAir Spring Assembly - 100 - 160mm Top Cap Spring Travel Spacers and Shaft Bolt 35 Gold A1

Thread Pitch 9 x 26

}SRAM GX DH/X01DH 7 Speed Rear Derailleur B-Bolt and Limit Screw Kit

Shimano BB-UN300 Bottom Bracket - English 68 x 122.5mm Spindle Square Taper JIS 50mm Chainline MFPN=BB 609 LLU MAX BO-BX } Small 25mm outer diameterShimano BB UN300 Bottom Bracket English 68 x 122. 5mm Spindle Square Taper JIS 50mm Chainline. Shimano BB UN300 Square Spindle Bottom BracketsFits JIS square taper cranksets Crankarm fixing bolts sold separately Hollow spindle TECH SPECS Defined Color Black Bottom Bracket Shell I. D. 1. 37 Spindle Length 122. 5 Spindle Interface Type Square Taper JIS BB Shell Width (mm) 68 BB Frame Interface English