Haro Bikes 2021 Annex Si BMX Bike (19.5" Toptube) (Black)

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The 2021 Haro Annex Si BMX Bike makes a great race bike that is also right at home cruising the streets with friends while not breaking the bank. The lightweight aluminum frame features a 19.5" toptube making it ideal for shorter riders who have just moved up to a full size BMX bike.

FRAME: 6061 series alloy frame w/ 3D dropouts w/ built in chain tensioners (19.5" Toptube)  
FORK: Hi-tensile steel threadless (1-1/8")  
HEADSET: Threadless loose ball (1-1/8")   
STEM: Forged alloy top-load (45mm reach)   
BARS: Hi-tensile steel (7.5" Rise)   
GRIPS: Micro knurl   
CRANKS: Steel 1-piece (165mm)   
BOTTOM BRACKET: Loose ball American   
PEDALS: Nylon (1/2")  
SPROCKET: 40T alloy  
CHAIN: KMC 410   
FRONT HUB: 3/8" loose ball 36H   
REAR HUB: 3/8" loose ball flip-flop 36H  
DRIVER: 16T freewheel   
FRONT RIM: Single-wall 20" Alloy  
REAR RIM: Single-wall 20" Alloy  
FRONT TIRE: Kenda Kontact 20x1.95"   
REAR TIRE: Kenda Kontact 20x1.75"   
SEAT: Haro padded adjustable  
SEAT POST: Alloy (25.4mm)  
SEAT CLAMP: Alloy (28.6mm)  
BRAKE LEVER: Promax XL-378 alloy lever  
BRAKES: Promax MV-295L alloy V-brake   
WEIGHT: 22.3lbs

Frame Specs  
Toptube: 19.5"  
Headtube Angle: 74°  
Seattube Angle: 70°  
Seattube Height: 9.8"  
BB Height: 11.5"  
Chainstays: 13.9"  
Sizing Guide: 5'3" - 5'8" Rider Height

Need help building your complete bike? Check out our bike build video below.  

NOTE: To ensure that every component on your bicycle is working properly, Dans Comp recommends that all bikes be assembled by a qualified mechanic. Improper assembly of your bicycle may lead to premature wear or failure of individual components such as headsets, crank assembly and wheels. Failure to do so may void the manufacturer warranty.

This product was added to our catalog on October 20, 2020

Verified Owner
Wednesday, Dec 30 2020 (about a year ago)
Haro Bikes 2021 Annex Si BMX Bike (19.5" Toptube) (Black)
Bike is excellent quality for a cheap bike. Adding a few minor upgrades for my son but not much is really needed for him to he able to enjoy it. Dan’s Comp service is excellent. I had a chat with a rep. before making the purchase and that person was helpful and then shipping was done quickly. Good buy. Would love to get a new DJ for myself and would buy from Dan’s if I could.
Verified Owner
Wednesday, Dec 9 2020 (about a year ago)
Haro Bikes 2021 Annex Si BMX Bike (19.5" Toptube) (Black)
Nice bike great dealer, shipped fast. I am very pleased with Dans Bikes