Headset spacers are essential for adjusting the height of your stem on the steerer tube and thus your saddle to handlebar drop and ultimately comfort while on the bike.

Shimano Alivio RD-M4000 Rear DerailleursResin plate body and carbon fiber reinforced plastic outer link for reduced weightLow profile “Shadow” design reduces exposure to crash damageItem SpecificationsRear Derailleur Mount TypeShimano

Model No. SB-R473 Cassette Compatibility: 3X7 Speed Front Shifting :Trip Bracket Material :Engineering Composite Brake Lever Material :forged aluminum / anodized Shift Cable :stainless slick Color : Black Weight

Shimano Tourney RD-TY300, RD-TZ50 Rear Derailleurs Features TX models come with Smart Cage which gives MegaRange compatibility with a shorter derailleur cageItem Specifications Color: BlackLargest Cog: 34Chain Wrap Capacity:

Material: Alloy Max Rear Sprocket: 34T, Min Rear Sprocket: 11T, Total Capacity: 43T Weight: 315g Perfect Replace: TZ31, TZ50, TX35, micro-turn and other low-end 6/7 speed bike rear derailleur

Cleans bicycle chain quickly, easily, and effectively – without the hassle and mess of removing the chain from the bike. The CM-5.3 Cyclone Chain Scrubber uses an extra-large solvent

Product Features The CG-2.3 works on all derailleur bikes and many 3-speed and coaster brake bikes. The Chain Gang includes: CM-5.2 Chain Scrubber GSC-1 GearClean Brush and 8 oz.

Features: 4-finger designed levers fit most people. Fit for 2.2cm diameter handlebar. high strength and durable. Easy to install. Smooth enough to make you feel more comfortable. Suitable for

Please check the descriptions carefully and confirm the specification of your original brake disc before purchasing！ Package Content: Mechanical Bike 160mm Rotor Front and Back Brake Disc Kit x