Mixed up rear derailleur - Shadow XTR, Shadow Plus XT and Zee for good measure

[SummitFever]

A stick on Monday night created a sudden need to build another rear derailleur. My first instinct was to make contact with the black hole of MTB parts accretion: Moorey. He let me down big-time by not having the thing I needed. Indeed, it was worse than that. He had the thing I wanted, but had already put it to good use for his own selfish purposes, thereby frustrating my attempts to bludge it off him. The nerve...

Anyhow, to cut a long story short, I was able to scrounge enough bits together to produce this fine amalgamation of Shitmano shifting pleasure:



More info on the Shadow XTR, Shadow Plus XT and Zee mash-up abomination here.

To keep things interesting, I'm using an 11 speed M9000 XTR shifter with this 10 speed RD and 10 speed Sunrace 11-40t cassette. It's a mixed up world alright...

If anyone wants to donate me some broken rear derailleurs for the price of postage, I will put them to good use .

 

[Boom King]

Like it but all that for 41g?

 

[moorey]

Ima still post you my useless bits, whether you want them or not...

 

[Zaf]

Like it but all that for 41g?

That sprung to unsprung ratio boner tho!

 

[SummitFever]

Like it but all that for 41g?

Don't really care about the 41g but do care about not having to buy a new RD. Seem to break them in new and interesting ways so good to be able to use the bits instead of putting them in the bin.

 

[rowdyflat]

Well done ,the cage arm usually bends . I have replaced one of these with another model = no problem.

 

[oliosky]

I'm confused about how you get an 11 speed shifter to work with 10sp cassette? Isn't the gear spacing different?

 

[wkkie]

I'm confused about how you get an 11 speed shifter to work with 10sp cassette? Isn't the gear spacing different?

I think there might be a super minor difference, but I've recently fitted a Shimano xt m8000 derailleur on a 10 speed cassette with no issues what so ever.

 

[SummitFever]

I'm confused about how you get an 11 speed shifter to work with 10sp cassette? Isn't the gear spacing different?

Basically works like this. 11 speed shifter pulls 3.6mm of cable each click. Ideally, a 10 speed rear derailleur wants 3.4mm of cable pull, but 3.6 is close enough for it to work OK. You can put a washer underneath the cable attachment point and this will lengthen the arm and get the pull ratio perfect but it's really not necessary.

You do need to fine tune the shifting so its perfect in the middle of the cassette (same shift speed up and down) and then the runout/error at the extremes is not enough to cause issues. Also, tune the shift so that the 11th click is effectively locked out by the limit screw for the big cog (otherwise that 11th click will shift the chain into your spokes).

 

[oliosky]

i now know something new.

 

[stirk]

This thing is awesome! I was hoping the link would lead to a pictorial account of what you did to make it

Now you just need to post some discreet pics of your bike on some other forums and wait for the keen eyed folk to do a double take and ask WTF!

 

[SummitFever]

This thing is awesome! I was hoping the link would lead to a pictorial account of what you did to make it

I actually went into a little detail when I did the 9 speed clutch derailleur a few years back.

Now you just need to post some discreet pics of your bike on some other forums and wait for the keen eyed folk to do a double take and ask WTF!

Good idea!

 

[slider_phil]

From memory the Shimano 9spd derailleurs where the last ones to work with their road shifters, so in theory you can use them with a 10/11spd cassette and a road shifter for your monstercross fanatics out there.

But now wolftooth has an inline converter so you can use road shifters with modern MTB derailleurs so you can have that sweet sweet clutched chain retention

...if you're into that sort of thing

 

[hifiandmtb]

This whole 10/11 mix is cool but why? IMO, the 10spd XTR shifter was king shit.

 

[The Duckmeister]

From memory the Shimano 9spd derailleurs were the last ones to work with their road shifters, so in theory you can use them with a 10/11spd cassette and a road shifter for your monstercross fanatics out there.

Up to 10-sp, with the exception of current-series Tiagra. Tiagra & road 11-sp. work on a different cable pull ratio, which isn't compatible with any MTB derailleurs.
PS: fixed your spelling too.

 

[SummitFever]

This whole 10/11 mix is cool but why? IMO, the 10spd XTR shifter was king shit.

Because Shitmano are twats. Have M9000 brakes and they only did ISpec II shifters in 11 speed.

 

[Oddjob]

From memory the Shimano 9spd derailleurs where the last ones to work with their road shifters, so in theory you can use them with a 10/11spd cassette and a road shifter for your monstercross fanatics out there.

But now wolftooth has an inline converter so you can use road shifters with modern MTB derailleurs so you can have that sweet sweet clutched chain retention

...if you're into that sort of thing

I can confirm that 10sp road shifter works with 9sp mtb rear derailleur. Apparently 11sp road works with 10sp mtb. Jtek also do a inline converter for the front derailleur.

Sent from my SM-T820 using Tapatalk

 

[Oddjob]

Because Shitmano are twats. Have M9000 brakes and they only did ISpec II shifters in 11 speed.

I think you can order I spec 2 adapters for m780 and m980 shifters.

Sent from my SM-T820 using Tapatalk

 

[slider_phil]

I remember stumbling across a site that listed a complete Shimano compatibility list in regards to shifters/derailleurs etc.

I've currently got my steel hardtail on the trainer with some old road bars bolted on to see what the comfort level is like (over 20hrs now and I'm liking the extra hand positions), so I'm thinking of trying a monstercross transition build for a bit of fun.

But it's currently running an XT 11spd derailleur and cassette so I'm thinking the easiest way will be the wolftooth adapter with some cheap Shimano road shifters. The other part of the equation is brakes. I've picked up some old avid bb7 cable brakes to see if the cable pull on a road shifter will work with them.

And I'll probably just go back to flat bars in the end

 

[blacksp20]

I think there might be a super minor difference, but I've recently fitted a Shimano xt m8000 derailleur on a 10 speed cassette with no issues what so ever.

Sorry for the mega grave dig...... did this work sufficiently?? What cassette did you use?