Switching to 1x10 drive chain system

Eran.lenga

hi.
i have MTB with a 3x10 system and i want to switch to 1x10. sifter shimano deor 10 speed.
i have a rear shimano deor derailleur.
Shimano deor RD-M615

can i use it with front 30T chain ring & 42-11 Cassette? Do i need hanger extension?

The Rookie

It's drivetrain..... and Deore.

Yes you can, you may need an extender, it will work on the B-screw but you may get better shifting with an extender.

You'll need to consider shortening the chain, but assuming you have 22/32/42 and an 11:36 now it would only be by 1 pair of links (assuming its sized spot on now) so not really a must!

Eran.lenga

thanks for the correcting and the answer, i will try it with extender.
do you think, that this extender will do the job?: https://www.aliexpress.com/item/ZTTO-Aluminum-Bicycle-Rear-Derailleur-Hanger-Extension-Extender-Road-Bike-MTB-Cycling-Frame-Gear-Tail-Hook/32862471350.html?spm=a2g0s.9042311.0.0.77914c4dCmWJhK
or
i need the more expensive : https://www.wolftoothcomponents.com/collections/drivetrain-1/products/goatlink

The Rookie

https://www.ebay.co.uk/itm/MTB-Mountain ... ctupt=true

I have one, works just fine, another regular contributor on here has the same one (on my recommendation) and again no issues.

swod1

Depends on your riding locations you might find a 30t chain ring up front too small.

I guess they have stopped making the radr cage plates to offset the top derailleur wheel, fitted the cage on my rear mech and it works great on 42t without needing any extender link but the extender is cheaper though.