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ZTTO MTB 11Speed SLR Cassette 11-50T 11s Wide Ratio

  • 1-4 Pieces
  • 5-9 Pieces
  • >=10 Pieces
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Shipping fee:
Depends on the order quantity.
Lead Time:
15 day(s) after payment received
Customized logo (Min. Order: 1000 Pieces)
Customized packaging (Min. Order: 1000 Pieces)


Graphic customization (Min. Order: 1000 Pieces) Less
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Quick Details
Freewheel Speed:
Gear Teeth:
36 - 42T
Place of Origin:
Guangdong, China
Brand Name:
Model Number:
Flywheel Adjustable Gear Number:
108 Sounds
Combo Set Offered:

Packaging & Delivery

Selling Units:
Single item
Single package size: 
22X22X7 cm
Single gross weight:
0.500 kg
Package Type:
Lead Time :
Quantity(Pieces) 1 - 10 >10
Est. Time(days) 15 To be negotiated
Product Description


ZTTO MTB 11Speed SLR Cassette  11-50T





about 360g 


11- 13- 15- 18- 21- 24- 28- 32- 38- 44- 50T


ZTTO never stop innovating! This is one of the new generation cassettes of beloved 11 speed 11-50 t cassette. We successfully created the most competitive 11 speed 11-50 t cassette on the market and proved our quality. However, the weight is what we sacrifice, now we decide to make a difference. Our team working day and night to develop some mind-blowing product. And of course, we still have the best cost-performances, without any sacrifice.

The Balance Between Weight and Cost-Performances

After thousands time of trial and error, we finally came up with a new design and successfully decreased the weight of 11 speed 11-50 HG splined freehub type cassette to astonishing 350 grams and we also find a right way to control the price and the quality. Now, you can save nearly 300 grams of weight without emptying your pocket. 

The Earlier Thoughts.

Talking about lose cassette's weight, the first thing we came up with somthing like this. A CNC machined spider and some steel cogs riveting on it. This is might be a cheaper solution, but larger cogs would still be quiet heavy. The weight could go up to 580 grams, even that is better than orginal 660 grams, but we are not satisfied.


The Idea Of CNC Larger Cogs.

After studing a lot of famous brands, we are start to looking into a one-piece full CNC solution. Full steel design is the best solution for the strength and durability, but full steel cost a lot. Then we consider the full aluminum design, but use aluminum alloy to make smaller cogs could make cassette easy to wear out. So we decide to only use aluminum alloy to make larger cogs.


Smoother Gear Ratio

Instead of traditional 11-13-15-18-21-24-28-32-36-42-50 gear ratio, now we changed to  11-13-15-18-21-24-28-32-38-44-50. With a smoother gear ratio, it will be easier for rear derailleurs to shift.


Full CNC Machined 7075 Aluminum Lockring

Not only beautiful anodized color,these lockrings could be extra lightweight and strong. 

Company Information


We just keep making it better!

This is what ZTTO is all about. With experiences of doing bicycle parts business for more than a decade. We are already providing a vast variety of drivetrain components to the riders for more than 150 countries. We make the best cassettes on aliexpress and we had the vision and desire to expand our presence in the cycling industry, so we are now expanding our Headset and Bottom Bracket business. 
Sure, a casual rider will appreciate solid performance, reliability, dependability and all the standard qualities one would expect. But it's the riders who live and breathe bicycles who love us most because bicycles are what we love, too. In fact, they're our only love. Bike components are all we do and how we live- which is why we do them so well.

ZTTO began with the goal of creating the best drivetrain system and changed the cycling world with our innovative products.

We are continuing to seek and deploy technological and engineering advancements, we are also expanding our B2B business, trying to keep making your cycling experience better!



Q1. Can I have a sample order for your product?

A: Sample order is welcome here. Mixed samples are acceptable. We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.

Q2. What about the lead time?

A: Most of our products are in stock ,1-3 days for sample or small amount orders, 20-30 days for mass production depending on actual order size.

Q3. Do you have any MOQ limit for the order?

A: Low MOQ, 1pc for sample checking is available

Q4. How do you ship the goods and how long does it take to arrive?

A: We usually ship by express way like DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping are also optional.

Q5. How to proceed an order?

A: Firstly, let us know your requirements or application.
Secondly, we quote according to your requirements or our suggestions.
Thirdly, customer confirms the samples and places deposit for formal order.
Fourthly, we arrange the production.

Q6. Is it OK to print my logo on the product?

A: Yes. Please inform us formally before our production and confirm the design firstly based on our sample.

Q7: Do you offer guarantee for the products?

A: Yes, we offer 1-year warranty to our products.

Q8: How to deal with the faulty?

A: All our products are produced in strict quality control system and the defective rate will be less 
than 0.2%.  During the guarantee period, we will send new products for small quantity. For defective batch products, we will repair them and resend them to you or we can discuss the solution including re-call according to real situation.