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  • Shimano XT M770 10 Speed Triple Chainset
  • Shimano XT M770 10 Speed Triple Chainset

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Shimano XT Chainset 10 Speed M770

  • A high performance chainset from the classic ATB group, using the most advanced 10-speed Dyna-Sys chainrings
  • Forged HollowTech II aluminium cranks offer unrivalled strength-to-weight ratio
  • Lightweight construction with external super smooth bottom bracket bearings for efficient use
  • Drilled steel and carbon composite construction middle ring combined with a thicker aluminium double anodized 42 tooth, and plated aluminium 24 tooth ring for excellent rigidity and durability
  • Close ratio gear combination: 42-32-24T provides improved cadence while reducing pedal feedback on suspension bikes
  • HG-X chainring with patented spike pins give smooth and fast gear shifts under load
  • Stiffness and strength increased with advanced design due to wider spaced bearings and oversized axle
  • 104 / 64 PCD four-arm chainrings
  • For use with 10-speed HG-X MTB chains only
  • We recommend that this bottom bracket is initially installed by a bike shop to ensure perfect bottom bracket facing and fit
  • Comes complete with bottom bracket for 68 and 73 mm frames
  • Average weight 862 g (175 mm including BB)

Buy Shimano XT Chainset 10 Speed M770 from Chain Reaction Cycles, the world's largest online bicycle store.

 
Rated 4 out of 5 by 6 reviewers.
Rated 5 out of 5 by No Regrets Gear ratios are perfect for a 29er coupled with 11-36 cassette. Absolutely no regrets. 14 May 2013
Rated 5 out of 5 by Superb All Round Moved up from the 9 speed version of this crank for my 29er build. Gear ratios are perfect for a 29er coupled with 11-36 out back - rarely use the outer ring unless on the road. I think this version looks better than the newer M785 too. 14 May 2013
Rated 5 out of 5 by You can't ask for better I had to jump in when I saw this had a couple of negative reviews. Seriously? I've been racing and riding for over 20 years and while I've bought bikes with different cranksets, I always come back to Shimano. You just can't beat them for reliability and value for money. Sure you can shell out 2X the $$ for XTR if you want. Or go for carbon and ceramic bearings. For just 4X the $$ you might even shave 70 grams. But I'm willing to bet, that stuff will pack it in a long time before good ol' XT. As far as cranksets go - and groupsets for that matter, stop wasting time obsessing over it, get XT and get out on the trails. 08 January 2013
Rated 3 out of 5 by could be better I have one of this on my orbea rallon. It came with three chain rings 24/32/42 teeth. If you want to use this with all three chain rings in the front it is very good, cant ask for more realy. But if you want to do like me and remove the largest ring and place a bash guard insteds, to go for a 2 by 10, it is not that good, for one resone. You will find your self out of gears prety soon with only a front 32 and an 11 on the rear, and this model does not have a 36 teeth for sale on the market, so you will be stuck with the 32. That is why I give it only a three star. I hope one day shimano will offer a 36t for this model too, then it would be a true 5 star 09 December 2012
Rated 5 out of 5 by Light and superb shifting Firstly, to PETER's review, you are a complete idiot... The chain ring sizes are options when buying this chainset (i.e. you can buy whatever ring sizes you want to run). Secondly, for the last 2 years I have been using RaceFace Deus XC chainset (XT front mech, XTR carbon rear mech) and had always had problems with bad shifting and flimsy chainrings, but for some reason I put up with the RaceFace because I prefer the RaceFace crank arm design. What a mistake that has proven to be; this chainset shifts so much better than the RaceFace and isn't as noisy either (less wear to chain rings). Now running a full XT drivetrain and couldn't be happier, should have done this years ago! 05 September 2011
Rated 1 out of 5 by XT 10 Speed - useless Just bought a Shimano 10-speed MTB set up. I focussed on the 11-36 cassette assuming I would get a wider range of gears but I didn't notice that the crank set only has 24/32/36 not the usual 9 speed 22/32/44. The ten speed is worse both in granny ring and the outer ring, i.e it is worse at climbing and worse on road or downhill as you can't go as fast. There really is no point in moving to 10-speed as it is more expensive and wears quicker. I'll be throwing mine away and going back to a 9-speed set up. 19 June 2011
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Frame compatibility?

Hi,

Apologies for the silly question but I just would like to know if this crankset and the bottom bracket which comes with it will fit into my bike's frame?

I have a 2012 GT avalanche 1.0 and it is currently fitted with the FSA gamma drive and mega exo bottom bracket which came with it.

Will this crankset and bottom bracket fit my frame?

Many thanks.
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6 months ago
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Answer: 
This crankset comes with a Hollowtech II bottom bracket; which is BSA English Threaded to fit to a Threaded Bottom Bracket shell.

As the Gamma Drive MegaExo system also uses BSA English Threaded Bottom Bracket cups; this crankset is compatible with the 2012 GT avalanche 1.0.
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XT M770 1x10 set up

Hi,
I have a XT M770 crank and would like to go with a 1x10 set up. Can you tell me the best position for the front chain ring on the XT M770....I'm guessing the centre chain ring position? Also do I need to remove/add any spacers on the drive side of the BB for optimum chain alignment?

Thanks
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Answer: 
Yes, using the middle ring mount is the best option. Depending on you chainline setup, you may prefer to mount on the outside ring. Spacer requirement varies depending on the frame, but is usually 2 x Drive Side & 1 Non-Drive Side for a 68mm wide shell, and just 1 Drive Side spacer for a 73mm shell (If E-Type then remove 1 Drive Side spacer).
When setting up a triple crank as a single speed you may find your chainline is still quite wide, but you can fit chainline spacers between the chainring and the spider to help fine tune it.
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