Skip to main content
Toggle navigation
Account
Account
Stores
Stores
Cart
Cart
Subtotal
:
$
0.00
Checkout
Cart
Search
Search
Menu
x
Cart
Cart
Account
Account
Stores
Stores
Shop
Bikes
Bikes
Road
Mountain
Cyclocross
Commuter/Urban
Comfort
Cruiser
Fitness
Hybrid
Children's
Other Bikes
Electric
Electric
Bikes
Clothing
Clothing
Accessories
Gloves
Jerseys/Tops (Short Sleeve)
Outerwear
Protective/Armor
Running
Jerseys/Tops (Long Sleeve)
Shirts/Tops (Casual)
Shorts/Bottoms
Shorts/Bottoms (Casual)
Socks
Triathlon
Undergarments
Helmets
Helmets
Parts & Accessories
Adults
Kids
Accessories
Accessories
Electric/Gas Motor Kits
Children's-Bike Accessories
Body Care
Child Seats
Electronics
Eyewear
Fenders
Hydration
Lighting
Locks/Security
Media/Resources
Packs/Racks/Baskets
Pumps/Inflation
Safety
Storage
Tools/Maintenance
Trailers/Strollers
Indoor Cycling
Travel Cases
Other
Shoes
Shoes
Parts & Accessories
Cycling Shoes
Wheels
Wheels
Parts & Accessories
Wheels
Hubs
Tires/Tubes
Tires/Tubes
Parts & Accessories
Tires
Tubes: All Sizes/Types
Car Racks
Car Racks
Parts & Accessories
Hitch-Mount
Pickup/RV/Spare-Tire Mount
Trunk-Mount
Nutrition
Nutrition
Drinks
Supplements
Gels/Chewables
Parts
Parts
Bar Ends
BMX
Bottom Brackets
Brakes/Levers/Pads
Cables
Cassettes/Freewheels
Chainrings
Chains
Cranksets
Derailleurs
Forks
Groups
Handlebar Grips/Tape
Handlebars
Headsets
Pedals
Saddles
Seatposts
Shift/Brake Combinations
Shifters
Stems
Other
Gift Cards
Gift Cards
Bike Brands
Trek Bicycles
Cannondale Bicycles
Santa Cruz Bicycles
Pinarello Bicycles
Colnago Bicycles
Electra Bicycles
Ibis Bicycles
Services
Bike Repair and Service
Bike Fitting
Bike Fit Services
Nate Loyal Fitting
Trek Project One
Pay With Klarna
About
Who is Helen?
Meet Our Staff
Helen's Cycles in the Community
Careers
Customer Feedback
Policies and Shipping
Locations
Rides & Events
Local Rides & Events
Calendar of Events
Our Favorite Rides and Routes
Contact
I. Martin Bicycles - Los Angeles, CA
Manhattan Beach
Santa Monica
Learn
Overview: kids' bikes
Overview: Gravel Bikes
Cannondale Synapse 2022
Pinarello DOGMA F
Santa Cruz Heckler 2022
HC Outlet
HC OUTLET
Filter
Close
Close
Filter By:
Availability
In Stock
1
Brands
Black Ops
1
Gender
Not Designated
1
Price
$10 to $19.99
1
Home
Bicycling Catalog
Parts
BMX
BMX
Black Ops
Knurled Pro
$14.99
- Threads onto 3/8" axles - Double-sided - Oversized - Alloy - Length: 3" / 74mm - Width: .94" / 24mm - Sold as a pair
Page 1 of 1