Pedal System | Chain LED It has received a full

It has received a full check-up and the battery is brand new along with a new gear cable

Gears: Shimano 7 Speed

Brakes: Front: Disk | Rear: Disk                                                                                          Brake Lever: Z*STAR brake lever without power off

This part is the rear derailleur for attaching the chain to the gear mechanism

Pedal System | Chain LED It has received a fullThe chain is the driving mechanism behind every bike, it connects the pedal crank and the driving wheel and gear system. Chains may need to be adjusted to different lengths depending on the bike. If your chain is slipping frequently you will need to remove a link or two. Be sure to keep your chain oiled to avoid rusting and smooth operation. NEVER use WD40 to oil a chain, this will assist rusting and quickly destroy your chain.