IC. So Shimano mega 9 chain ring only can use on most high grade is Alivio RD/Cassettle/chain now?

not entirely sure, but should fit without any problem. i think it can even fit Deore/SLX/XT no problem.

Because I worry Mega 9 system can compatible with Dyna-sys or not. My old RD seem got problem. But now 9 speeds RD only for Alivio / Altus. I don't want change so many parts. Because the XT crankset still very nice.

I'm also using Deore XT FC -M770 9 speed crank on 10 speed chain. No worries it works, that mean you can pretty much use full 10s casette and rear derailuer too. Not sure about 11 to 12 speed yet but if you need to you'll just swap using thinner chain ring. the FC-M770 indeed a beautiful crankset.





This post has been edited by SupermotoXL: Dec 17 2019, 07:30 AM

Thank you so much for giving me a clear info for that.

So I can maintain the 9 speeds Shift and just bought a Deore Dyna sys 10 speed RD to use on it ? The FC-M770 not only beautiful but it is so lightweight. This is why I still love it. You use what chain? Shimano HG-X or KMC X9? X10?

Sorry for the late reply... Your current crankset is only compatible with the current series(three digits) you have so you are restricted 10sp and below for that generation. You won't be able to use the current generation which have 4digits like the M6000 that is also 10sp and above let's say M8000 series that is a 11sp. This is all due to the difference in BCD like I mentioned before... 104mm(your series) and the 96mm(current series).

I hope you're a bit clearer on this...

Thanks you for the info. You make me more clear on the picture now.

I am having 104 BCD crankset and the Mega 9 system. The problem is my RD seem got problem, I wish to change the RD, so which one should I get in the market now?
Let say I wish to maintain 9 speeds Mega 9 , so the only option is get Alivio RD M4000 (the most high grade in current market for 9 speed now) or try seek old stock deore 9 speeds M591 ( seem a little bit hard )?

Another question is can I use Dyna-sys Deore 10 speeds RD to match with my current system ?

I'm guessing you are right on the Alivio part shud you maintain your 9sp system.

Correct me if I am wrong but you need a 10sp shifter to function with a 10sp RD.

Btw i'm using some Dura-ace 10s chain. Oh since you mentioned running Dyna sys 10s rear derailleur however it will not work on 9s cassette or shifter because the shift 'leverage' on 10s rd is different than 9s. You must stick back to anything 9s rd. Btw there's lots of 9s rd for XT up to XTR, you should get a good bargain price for just 30% of the original price. I got my mega9 XTR front RD for rm50 only hehehe!

Thanks you. I will stick to 9 speeds.

Thanks. The RM50 XTR RD is brand new or used? If brand new old stock then very nice. I wonder how to find this parts.

Its a brand new, solid and beautiful. By now most bike shop will sell it super cheap because 9s is obsolete. I bought the front RD and full hub set (for spare keeping) with titanium freewheel for just rm100!
Oh btw here's close snapshots of my rm50 XTR RD and also changed my air fox shox to fox coil shox during close out stock. Btw if you're looking for cool XTR RD find the one with the carbon fibre RD cage! I got one and its sweet!




Here's the carbon XTR RD 9s, those are limited but you can still find one.



This post has been edited by SupermotoXL: Dec 18 2019, 07:22 AM

Better complete upgrade group set to 11 speed, Take the deore XT 11 speed derailleur chain and shifter, Cassette can be sunrace 11 speed 11-50T, remove front triple chain ring and upgrade to single chain ring, usually brands snail is super light weight and take the 34T and remove front derailleur and shifter, can save over 1.5kg weight and upgrade costs is around RM900-1000.

The bike shop near my place all sell very high price. Even those old stock / obsolete they also sell in high price. Hard to find those brand new like yours XTR component in cheap selling price.
How much for the coil spring fox rear shock ?

Is there anyone want to sell their bike cheap2

This set up like old time DH bike setting. Front 1 plate.

1 x 11 and 1 X 12 riding experience good?

Confirm good, especially new XTR or Eagle, combine good wheel set like ZTR crest, pillar light weight spook, DT swiss/ koozer hub, specialized chisel frame, manitou m30 fog, carbon handle bar, the total weight of bike around 8.8- 9 kg quite nice, the benefit is the smallest cog of 10T, if good training enough, the 29er wheel and good cadence can achieve 40 km/h average speed. But the cons is $$$$.

Got the for FoxShox coil for Rm300 because its been there for years, felt nice and planted compare to air shocks and last longer because it doesn't use much air seals. Btw the trick of getting cheaper parts for old models is by not saying what you want to find when you're at local bike store, just say; "Do you have old 9s bike parts for sale?" ...giving them ambiguous answer will let him think its the best time to get rid of old stuff and will declare what he has to offer by giving you choices of what he has since the seller desperate and its a perfect time to sell out. But if you say; "I want to buy old 9 speed derailleur parts"..you'll make it sounds like you're desperate for 'that' particular old parts and he will take advantages to markup the price. That what i called 'mental' strategy marketing. That's how i successfully deal with these type of people when try to obtain rare stuff without paying more.

Another trick is to get someone who knows the bicycle shop owner coarse into selling off the old bike parts cheap since it can be awkward to sell expensive parts to a bike friend especially the one knew for so long.
However in my case the local bike show owner knows me very well so he can't simply put the price, i knew my bike stuff very well hehehe..


Check this out bought another set of these old beautiful XTR 9s hub, i need this to pull out those titanium parts to repair my XTR disc wheelset since they share the same internal parts. Hehehe..lots of cool quality top notch 9s stuff to buy!


This post has been edited by SupermotoXL: Dec 18 2019, 07:39 PM

Very nice price. So worth. XTR is top grade, the build is superior. I wonder I can get the same luck as yours or not.

Another question, since already many years riding. The screws which come with original bike got some rust. Do you change those screws to titanium or stainless steel ? My bike majority are M6 M5 M4 screws, think to change all to stainless steel.

Honestly speaking my the bike i used since 2006 until now the GIANT TRANCE, all my components have zero rust neither the bolts or screws. I even riding without serious washing, just rinse with water and that's it. I use all quality parts grade parts which mean no need services or care work. Almost zero tuning maintenance work too. So that's 13 years or bike riding with no rust or metal corrosion. Just scratch marks on the body paint works due to bashing inside the jungle and downhilling.

Here the photo:











This post has been edited by SupermotoXL: Dec 19 2019, 07:20 PM