Shimano SLX RT66 & RT64 Brake Disc Rotor Compared, 6-bolt and Center Lock

Shimano #SLX brake disc #rotors compared, RT66 SLX and RT64, 6-bolt and Centre Lock. Details, installation #shimano
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⭐Shimano OEM parts from Canada:
Shimano XT MT800 Center Lock Rotor - bit.ly/2Z9wrBy
Shimano XTR MT900 Center Lock Rotor - bit.ly/32122qZ
Shimano XT SM-RT86 6-BOLT DISC BRAKE ROTOR - bit.ly/2EZPqYo
SHIMANO SLX SM-RT66 6-BOLT Rotors - bit.ly/321U0Op
Shimano SM-MA Disc Brake MOUNT ADAPTERS - bit.ly/331pinP
SHIMANO SM-BH90 OLIVE & BARB/ insert - bit.ly/3jTgirX
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Shimano XTR RT-MT900 Center Lock Disc Brake Rotor 180mm - bit.ly/3jYKQJx
Shimano XT RT-MT800 Center Lock Disc Brake Rotor 180mm - bit.ly/30fHtG9
Shimano SLX SM-RT70-S Center Lock Disc Brake Rotor - bit.ly/33Sr90x
Shimano SM-HB20 Lock Ring for 12/15/20mm Axle Hubs - bit.ly/3ajj3PI
Shimano XT RT86S 160mm 6-Bolt Ice Tech Disc Brake Rotor - bit.ly/2DWokka
Park Tool FR-5.2 Cassette Tool - bit.ly/2HRxRqr
Park BBT-9 BB Tool Shimano Hollowtech II - bit.ly/2uNKcqv
Park BBT-69.2 Bottom Bracket Tool, 16 notches, 44mm OD - bit.ly/2v4QIZ4
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Shimano BH90-SB Brake Hose Olive and Insert - bit.ly/2wKfu25
Shimano BH90-SB 2000mm Disc Brake Hose Kit - bit.ly/2Gwwpde
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Park Tool AWS-10 Metric Folding Hex Wrench Set - bit.ly/2QUqa6S
Park Tool Polylube 1000 Grease - bit.ly/2qy34qo
⭐Here's a good brake bed-in procedure from SRAM
• SRAM: Disc Brake Bed-I...
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[@iSangreVerde]

Excellent review! I really like your videos because you take the time to put everything we want to know without being boring to the viewers or misleading information. Really professional approach. Have a good time! Cheers!

[@famder2]

your reviews are good and straightforward!

[@oleoj9403]

love your channel and the gear you are reviewing. i was very happy to see with the new 11spd Xt transmission review you had not so long ago. keep them coming!

[@tamasvarga67]

Great review! I also found the SLX discs perfect for XC/Trail riding. For long steep descends the Ice-Tech discs and finned brake pads are the way to go in my experience as they work perfectly together. I noticed that more bikes come with the cheapest RT56 "reisin only" discs and they are just not good. Some of my friends were complaining about their brakes - mostly lack of braking power - and wanted to upgrade but I told them to upgrade the discs to SLX before buying a new set of brakes and that will probably solve their issues. No complains since...

[@tamasvarga67]

+LoveMTB It seems we have the same experience with it. :)

[@rigorhead01]

Love your videos, keep em coming!

[@DVDSON90]

can you tell me ,which is better, six bolt rotor or centre lock..?

[@sgoaty]

Bought these in 220mm they were cheap at £10 for the RT66 and £12.50 for the RT64 they're not straight at all out of the packed. Considering changing for something better already.

[@LoveMTB]

Have you tried to true them? Or check out my latest vid on Galfer Shark rotors some interesting options there

[@sgoaty]

Are they the same rotors except for the fitment? Thanks

[@LoveMTB]

Yes

[@snaXaminator]

Have you noticed, or did you heard about the "new" RT66 rotors, which are made in China (instead of Japan), differs a bit in weight and finishing (they're stamped, instead of laser cut rotors). If you have access to these kind of rotors, could you make a comparison video with the good old SLX (Japan) and newer (cheaper to make, in China) ones? I personally got my new bike with those "new" rotors, but had no confidence in them, so I quickly swapped out them immediately with some discs made in Japan (fortunately I had a brand new paid in my spare part bin :) ).

[@peaknet9095]

What was the point of weighing the rotors; apples and oranges when comparing centre lock to 6 bolt...

[@animeshkumar3256]

Hey, I lost my bolts in 6 bolt rotor can I know the size of your bolts that I can buy a new bolt. Also can I convert it into center lock.

[@MrRemota]

Obrigado. Muito esclarecedor.

[@bogdan9980]

My eyes be like ,,ouch,, when he touches the braking surface xD

[@jltrack]

All good, he can wipe it with an alcohol prep pad.

[@proskill4900]

I wonder what the weight difference is (or any other difference) between the Centerlock RT-64, and the RT-68 that I recently got. It seems like the Centerlock hub is the cause of the extra bit of weight.

[@proskill4900]

+LoveMTB The CenterLock RT-68, to my surprise, are actually a bit heavier than both the RT-64 and RT-67. I don't know if it's just my digital scale that is giving me reading errors or not. The included locking ring is the exact same one as what you showed in the video. RT-68 160mm: 149g / 5.25 oz. RT-68 180mm: 173g / 6.10 oz.

[@soliranje]

Hi there! I bought new slx brake setup and I would like to upgrade my rear rotor from 160mm to 180mm. So, is brake calliper adapter for 180mm the only new part I need for this upgrade? Thanks.

[@theokalentzis7424]

Actually, if I'm not mistaken, the size of the rotor will put your brake pads out of alignment and will likely require a spacer to push the caliper further out. You probably won't even be able to mount the wheel after installing the rotor.

[@WanderABit]

@@theokalentzis7424 The last problem is frame dependent, you simply have to have enough space. The first statement is completely wrong, it is flat disc, how come the bigger disc would end up shifted in parallel? If the rotor is bent, sure, but you should true the rotor anyway.

[@DAVIDSVETAGORA]

Difference between RT 10vs. RT 54 vs. RT 64? Do they fit each other?

[@aldee3018]

can you tell me what tool i would need to use on the shimano sm-hb20 center lock lockring.

[@aldee3018]

ty,I've asked a bunch of time to multiple people and not one person answered again thanks.

[@aldee3018]

thanks for the super fast reply.

[@aldee3018]

funny you should mention that i was just out today in cheesequake state park riding some trials. it's always good to get out of the city and kick up some dirt.lol

[@KladbaseCapital]

Whats the name of the tool you use to measure?

[@surferboycoolable]

Vernier or micrometer will work.

[@ambalee]

Hello there! Shimano website says, "Narrow type 2piece rotor are not compatible to caliper for Wide type rotor because of interference." (eg BR-M355 brake caliper with SM-RT64 rotor). I'm not sure what it means! Do you know someone who has this kind of caliper/rotor combination with or without issues? Thanks!

[@ambalee]

LoveMTB hi, thanks for the reply. I've fitted an RT64 with my M355. It felt a little under power (braking power). I think it's because of my inferior brake. I think it's time to upgrade.

[@elbarbun]

Mine arrived, brand new, in a plastic bag, without any instructions or box. Have I been scammed??

[@LoveMTB]

Made in China these days, probably bought bulk, etc

[@vojtechsobolik9536]

that´s OEM package, made for manufacturers and services primarily, but some sellers are able to get their hands on them. They come in a big pack of a hundred and are much cheaper - that´s why it was cheaper than most, because there is no box etc. These rotors used to be cut by laser in Japan, about a year ago they changed that, moved manufacture to China like all of the cheaper rotors and they are pressed out of a sheet of metal. It is still a good rotor compared to RT54/56 (lower grades are absolute rubbish), not as good as it used to be, though.

[@LoveMTB]

@@vojtechsobolik9536 Agree not as good as they used to be.

[@bosujo7toulah]

Does the RT numbers makes any difference ?? Cuz I'm looking a new center lock rotor for upgrading my old 160 to 180 .

[@deylalu]

Is it okay to pair the RT64 with J03a pads?

[@deylalu]

@@LoveMTB thank you!!

[@Roger-wu2eg]

The chinese sm rt 66 is better than the japanese. The japanese looks more matt and has sharp edges, the chinese not, looks more nice and my japanese disc brake is however squeaking.

[@aldee3018]

true.

[@nicolasbozzo2364]

This is deore level slx level is the rt70. Typically slx starts with 7 and deore parts start with 6, xt 8 and xtr 9

[@vojtechsobolik9536]

no, Deore rotors are 54/56, SLX are 64/66, XT are 74/76 and XTR are 84/86

[@Eric-kn4yn]

No