Shimano Alivio CS-HG400 Cassette - 9 Speed, Silver Nickel Plated gift the frame is lower so

the frame is lower so it's easier for kids to stand over and hop on and off

10x135mm Front Hub Alloy

Center Lock

and the new 2021 Jekyll mountain bikes threaded 12mm axles

Shimano Alivio CS-HG400 Cassette - 9 Speed, Silver Nickel Plated gift the frame is lower sohimano CS HG400 9 Speed Cassettes Nickel plated finish for corrosion resistance Drilled cogs for weight savings Nickel plated steel lockring The CS HG400 cassette meets durability requirements for E MTB applications Cogs: 11 12 13 15 17 19 21 23 25 Cogs: 11 12 13 14 16 18 21 24 28 Cogs: 11 12 14 16 18 21 24 28 32 Cogs: 11 13 15 17 20 23 26 30 34 Cogs: 11 13 15 17 20 23 26 30 36 Cogs: 12 14 16 18 21 24 28 32 36