Shimano FC-TY501 Left Crank Arm – 170mm, Black, Square Taper, Replacement Part Y1R505110

Shimano FC-TY501 Left Crank Arm – 170mm, Black, Square Taper, Replacement Part Y1R505110

Condition: New. The item may be missing the original packaging

The Shimano FC-TY501 Left Crank Arm (Y1R505110) is a 170mm black aluminum non-drive-side crank arm designed as a direct replacement for Shimano’s Tourney FC-TY501 cranksets. Compatible with square taper bottom brackets, this left crank arm is a great option for restoring performance and balance to hybrid, city, MTB, or trekking bikes where the original arm has been damaged or worn out. Made from forged aluminum, it is both lightweight and durable, offering solid performance for recreational and utility cycling

Specifications
Brand: Shimano
Model: FC-TY501
Part Number: Y1R505110
Crank Arm Length: 170mm
Side: Left (Non-drive side)
Material: Forged aluminum
Finish: Matte black
Bottom Bracket Interface: Square taper (JIS)
Chainring Compatibility: N/A (left side only – no chainring interface)
Threading: Standard pedal thread (9/16″ x 20 TPI)
Weight: Approx. 300g (left arm only)

Features
Genuine Shimano replacement part for FC-TY501 cranksets
170mm length – common size for adult bikes
Durable and corrosion-resistant aluminum alloy construction
Compatible with square taper JIS bottom brackets
Works with standard 9/16″ pedals
Easy to install with a crank puller and 14mm crank bolt
Ideal for repairs or restoring symmetry when only one crank is damaged

Applications
Compatible with a wide variety of Shimano-equipped bikes:
Hybrid and Fitness Bikes
Entry-Level Mountain Bikes
City and Urban Commuter Bicycles
Recreational Touring Bikes
Bike Shop Repairs – quick OEM fix for damaged left cranks

Cross-Compatible Models
Shimano FC-TY501
Shimano FC-TY301
Shimano FC-M131 (some variants)
Compatible with most Shimano square taper JIS cranksets with 170mm length

Comparable Products
Shimano Y1GX98020 – Left crank arm for FC-TY301 (170mm)
SR Suntour XCT Crank Arm (Left) – Square taper, similar build
SunRace FCM30 – Budget equivalent for 170mm square taper setups
Prowheel Left Crank Arm – 170mm replacement for recreational bikes

Part of a Larger System
This crank arm is used with:
Square Taper Bottom Brackets (e.g., Shimano BB-UN300, BB-UN55)
FC-TY501 Cranksets (42/34/24T or 48/38/28T chainring variants)
Standard 9/16″ Pedals
Torque specs: usually 35–50 Nm (consult Shimano tech docs)

Related
Shimano left crank arm 170mm
Replacement FC-TY501 left arm
Square taper left crank – black
Shimano Y1R505110 part
170 mm bike crank arm non-drive

Common Requests:
“Is this compatible with Shimano FC-TY501 triple cranksets?” ✅ Yes
“Does this fit a square taper bottom bracket?” ✅ Yes, JIS taper
“Can I use this as a replacement for my FC-TY301?” ✅ If same crank length
“Does it include a crank bolt?” ❌ No, crank bolt sold separately
“Is this crank arm made of steel or aluminum?” – Forged aluminum for weight savings and strength

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NL29-04