Tiagra has been completely reengineered and remastered with a more refined ergonomic design.

Tiagra shares our top groups' engineering lineage offering greatly enhanced feel and sleek design backed by new levels of performance.
Brakes
Product
Brakes
BR-4500   
TIAGRA Dual-Pivot Brake Calipers
Cassette Sprockets
Product
Cassette Sprockets
CS-HG50-9R   
TIAGRA 9-Speed HyperGlide Cassette Sprockets
Chains
Product
Chains
CN-HG53   
Super Narrow CN-HG53 for 9-Speed
Cranksets
Product
Cranksets
FC-4500    FC-4503   
FC-4550-S    SM-FC4500   
TIAGRA 2-Piece Front Cranksets are offered in Double, Triple and Compact versions.
Front Derailleurs
Product
Front Derailleurs
FD-4500-F    FD-4500-B   
FD-4503-F    FD-4503-B   
TIAGRA Front Derailleurs are offered to suit double or triple cranks with clamp-on and braze-on versions.
Rear Derailleurs
Product
Rear Derailleurs
RD-4500-SS    RD-4500-GS   
TIAGRA features Wide Link design Rear Derailleurs for precise and reliable shifting.
Shifters
Product
Dual Control Levers
ST-4500   
TIAGRA Dual Control Levers feature a reach adjustable ergnomic design and integrated Optical Gear Display.
Front Hubs & Rear Freehubs
Product
Front Hubs & Rear Freehubs
HB-4500    FH-4500   
TIAGRA Front Hubs & Rear Freehubs feature internal grease sleeves for increased durability and service life.