ZTTO MTB 11 Speed 9-50T Cassette XD Ultimate Pro ULT Golden Rainbow 372g Steel Durable Sprocket Ultralight 11s 9-50 k7 9 to 50

ZTTO Ultimate MTB 11 Speed 9-50T ULT XD Cassette Rainbow

XD Compatible

9-11-13-16-20-24-28-32-36-42-50
Material : High strength steel (9-42T) and 7075 Alloy(50T)

Weight : about 373g(ULT)/ 380g(ULT pro)
Color : rainbow (everyone is different)

The latest version 50T is changed to black color, Compared to the gray 50T version, we adjusted a bit of the shift design to optimize performance and strength.
Shi's and SR"s derailleur is compatible. you can use like M8000/ GX / X1 etc. (SR"s derailleur need hanger extension to work together for 50T on some frame). in the video, we are using GX derailleur + hanger extension + ZTTO 9-50T ULT + ZTTO 11speed chain.

by the way about 9-46T, we already done it. please search it in ZTTO official store. Thank you for your suggestions, if you have any ideas, welcome to share with us.

ZTTO Ultimate series

ZTTO Cassette offers a larger range, more value and lighter weight than the competition. Now, our ULT cassette has an improved structure for smoother shifting.

9-50T 556% RANGE

The new ZTTO 9-50T cassette weighs in at 372 grams, and has a 556% gear range
For comparison, SR's 10-50 tooth X01 cassette weights 360 grams with a 500% gear range, cost about 340USD, while Shi's 11-46 tooth cassette weighs 441 grams with a 418% gear range.

9T not only increased the range, but also reduce the weight of the system, because there is a greater range allows you to use a smaller chainring, also reduces the risk chainring hit stone

What is the difference between ULT and ULT pro?

The ULT pro, chain will not fall when the pedaling back. Increase 50T thickness to accommodate greater pedaling power.(sure, that cause to added a little weight, about 10 gram)

XD Compatible

this cassette is compatible with XD hub only, just like XX1 XG1199 cassette, please note.

Light Weight 373g(ULT)

Light weight and strong, a perfect balance

CNC Made, Precise Shifting Performance

Rainbow Painting

The special processing technology makes the cassette show beautiful color in the rotation.

Write at the end

No matter what cassette you use, first, make sure the derailleur hanger is straight. you can use a hanger alignment gauge to check. In fact, many people know this, but when we get the new cassette, we couldn't wait to install it, so we forgot to check it, why are we reminding you here? Because this situation just happened, a buyer, he said that the cassette of other famous brands can work normally, but ours can’t. We discussed this for a long time, and finally we found out that it was caused by the bend of the hanger, which was interesting. When we find that some famous brand cassettes can still be used when the hanger is bent! (of course, not perfect, there is some clarking noise) it is always difficult to admit that others have done well, isn't it? That’s ok, we will continue to work hard and improve product performance, now we can guarantee that our products work good as well as famous brands under normal conditions. We will do our best to catch Shi and SR. Thank you for your support :) Best regards.