D3T DISTRIBUTION SAS ("We"), along with our Partners, use Cookies and Trackers to ensure the proper functioning of this website, to carry out audience measurements, to offer you personalized advertising and tailored offers, or to share content with you via social networks. Your data is shared with 10 of our Partners. We retain your choices for 6 months. You can change your mind at any time by clicking on "Set my Cookies" in the links at the bottom of the page. For more information, please consult our Cookie Policy.

List of our partners

FRENCH DAYS: we're extending the offer I'M GOING FOR IT

Motoblouz present at the MOTO GP of France

My Motoblouz Programme: Join the adventure

30 days returns

Help and contacts

EN - EUR

Motorbike

Basket

Clearance
Motorbike helmets
Full-face helmets
Modular helmets
Jet helmets
Motorcross helmets
Kids helmets
Men's Motorcycle Gear
Motorbike Jackets Leather Motorbike Jackets Textile Motorbike Jackets Summer jackets Airbags Back protectors and other protective gear
Motorbike gloves Summer Motorbike Gloves Mid-season motorbike gloves Winter Motorbike Gloves Heated Motorbike Gloves Gore-Tex gloves
Motorbike pants Jeans Textile pants Leather Pants Waterproof pants Protectors/Sliders/Knee pads
Men's Motorcycle Boots and Shoes Motorbike Boots and Anckle Boots Motorcycle Sneakers and Shoes Waterproof boots, sneakers and shoes
Cold and Rain All heated products Neckwarmers/Balaclavas/Masks Technical and thermal underwear Inner-gloves/Over-gloves/Over-boots Rain Suit Rain jackets/pants
Race suits
Men's Equipment Packs
Women's motorbike gear
Women's Motorbike Jackets Leather jackets and vests Textile jackets and vests Waterproof jackets and vests Back protector and other protective gear Airbags
Women's Motorbike Gloves Summer Motorbike Gloves Mid-season Motorbike Gloves Winter Motorbike Gloves Heated Motorcbike Gloves Waterproof Motorbike Gloves
Women's Motorbike pants Women's Motorbike Jeans Textile pants Leather Pants Waterproof pants Protectors/Sliders/Knee pads
Women's Motorbike Boots and Shoes Sneakers and Shoes Boots and ankle-boots Waterproof boots and sneakers
Cold and rain Rain jackets and pants Neck warmers/balaclavas Inner gloves/Over gloves/Over boots Rain Suits Technical and thermal underwear
Race suits
Mx, Enduro and Trials
Motocross Motocross Helmets Motocross outfits Motocross Jerseys Motocross pants Motocross gloves Motocross boots Spare parts Boots Spare Parts Helmets
Enduro Enduro helmets Enduro jackets Enduro jerseys Enduro pants Enduro gloves Enduro boots Spare Parts Boots Enduro luggage
Kids Kids motocross helmets Masks Screens and Accessories Kids motocross outfits Jerseys Pants Gloves Boots Protections Chest protectors and vests Knee and elbow pads
Mx/Enduro Masks Masks Screens and Accessories
Mx/Enduro Protectors Chest protector/Protection vest Neck Protection Orthotics/ Knee pads/Elbow pads Technical Protection
Technical accessories Technical underwear Rainwear Hydration systems/camel backs Socks and leg warmers
Trial Trial Helmets Trial Jerseys Trial Pants Trial Boots
Mx/Enduro Prov equipment
Motorbike Tech
Intercoms and hands-free kits Communication Systems Intercom Accessories and Spare Parts
Smartphone accessories Phone cases Phone holders Adapters and Chargers
GPS and GPS trackers GPS and Tracker GPS holders
Motorbike Airbags
Airbags
Airbag Accessories and Refills
Motorbike parts and tools
Oil & maintenance spray Engine oils Liquids & lubricants Maintenance sprays & liquids
Motorbike filters Oil filters Air filters Air horns Filter accessories
Motorbike exhausts Complete exhaust systems Motorbike mufflers & silencers Motorbike manifolds Motorbike exhaust accessories
Motorbike braking Motorbike brake pads Motorcycle discs Lever, master cylinders & pedals Brake hoses Repair kits
Batteries & electrical parts Motorbike batteries and chargers Turn signal relays Starters Stator Neiman - Ignition switches Other electrical parts
Transmissions Motorbike chain kits Motorbike chains Motorcycle sprockets Motorbike sprockets Scooter transmissions
Engine parts & cables Motorbike spark plug Clutch Carburation and injection Reed valve Seal Upper engine Lower engine Cable Cooling system
Wheels & inner tubes Inner tubes, foam & accessories Wheels & rims Wheel bearings
Shock absorber & suspension Shock absorber Fork oil seals Bearings Friction ring Lowering kit Reconditioning kit Starter hook
Tools and maintenance Motorbike maintenance products Battery chargers Workshop stands Motorbike covers Tools
Motorbike accessories
Locks & alarms
Motorbike customization Commodo & horns Speedometers & Indicators Handlebars & accessories Fork tees & handlebar clamps Handles & heated handles Gas cylinders Levers, clutch covers, master cylinders Footrests, selectors & pedals Rearview mirrors Motorbike kickstands Stickers & rim nets License plate holders Decoration kits Tanks & caps Insurance holders
Motorbike clothing & protective gear Winshields, windscreens & windjumps Plastic kits Radiator scoops and protectors Seat covers Bodywork & Fairings Mudguards Wheel arches Tank protectors Protectors & covers Motorbike shoes Crash bars & sliders Aprons & handle bar muffs
Lighting and signage Bulbs Turn signals and lights Indicator centrals/relay & resistors
Motorbike seats Comfort seat (or stock type)Universal seats Saddle covers
Tech GPS GPS accessories
Motorbike luggages
Top cases and motorbike suitcases
Saddlebagsand pillion bags
Tank Bags
Mounting brackets & installation kits
Tank pads for luggage
Back rests & sissy bars
Backpacks and leg bags
Transport bags
Sportswear
Caps/beanies/neck warmers
T-shirts/Shirts/Polo shirts/Sweatshirts
Jackets and down jackets
Transport bags and backpacks
Gift ideas
MotoGp Replicas
Motocross Sportswear
Deals and Promotions
Helmets and Accessories
Men's Motorbike Equipment
Women's motorbike equipment
Motorcross/Enduro/Trials
Motorcycle parts and accessories
Gift cards
EN | EUR €—Change
Brands
Contact us

FRENCH DAYS: we're extending the offer I'M GOING FOR IT

Motoblouz present at the MOTO GP of France

My Motoblouz Programme: Join the adventure

Homepage

Motorbike parts and tools

Transmissions

Chain kit EK CHAIN JT 520M3 13/50 - Ultra Light Rear Sprocket

FRENCH DAYS

EK CHAIN JT 520M3 13/50 - Ultra Light Rear Sprocket Chain kit

Non-contractual photo

FRENCH DAYS

EK CHAIN JT 520M3 13/50 - Ultra Light Rear Sprocket Chain kitYAMAHA 125 YZ 125 - 1993Ref : EKC03639A / 3068438

Name: JT 520M3 13/50 - Ultra Light Rear Sprocket
Brand: EK CHAIN
Price: 90.48 EUR
Availability: InStock

Recommended retail price:122,40 €?

90,48 €

Check compatibility

Unknown delay

Add to basket 90,48 €

Payment in instalments available!

Try first, pay in 15 days

30 days returns

Description
Compatible motorbikes
Questions and answers
Video

DescriptionEK CHAIN JT 520M3 13/50 - Ultra Light Rear Sprocket Chain kit

Product details :

Features

EK/JT 520M3 13/50 Chain Kit - Ultra-Light Sprocket by EK CHAIN: a set designed for motocross use, combining a robust 520M3 chain and an ultra-light aluminum rear sprocket. Ideal for riders looking for a reliable and lightweight transmission suited to the demands of rough terrains.

Configuration: 13-tooth sprocket / 50-tooth sprocket (13/50)
Chain type: 520M3, number of links 116
Color: gold / gold
Sprocket material: aluminum (ultra-light)
Weight: 1.36 kg for 100 links
Relative lifespan: index 450 for 100 links
Recommended use: Cross, competition, and intensive training
Manufacturer reference: not provided

This kit combines the abrasion and traction resistance of a 520 chain with a lightweight aluminum sprocket, designed to minimize added mass on the rear axle. Suitable for many motocross bikes (e.g., Yamaha YZ 125 1993) after verifying the number of links and tension adjustment. Maintain regular upkeep (tension, cleaning, and proper lubrication) to preserve the performance and longevity of the kit.

Technical information :

Reference

EKC03639A / 3068438

Complete chain weight

1,57 kg

Quality

Reinforced

Weight (kg/100 links)

1,36 kg

Relative wear life (per 100 links)

450

Tensile Strength (lbs)