Trek Fuel EX 9.8 29er Drivetrain upgrade

denishoctor
denishoctor Posts: 2
edited February 2016 in MTB buying advice
Hi all,

I bought a second hand Trek Fuel EX 9.8 Carbon 29er 19" frame and am looking to upgrade the rear mech as it's not in great shape. I'm thinking to change the cassette, chain and crank as they are worn too. This is the first time I've done anything like this and have been reading up but am unsure on minor details like crank & rear mech length. Do the details below sound right?

Any input appreciated!

Bike: http://archive.trekbikes.com/au/en/2014/Trek/fuel_ex_9_8_29#/au/en/2014/Trek/fuel_ex_9_8_29/details

Shimano XT HG95 SIL-TEC 10 Speed Chain
Silver, 116 Links - sku389739

Shimano XT M785 10 Speed Double Chainset
104mm, Black, 175mm, 38.26t - sku255614

Shimano XT M771 10 Speed MTB Cassette
Silver, 11-36t - sku187732

Shimano XTR M986 Shadow+ 10 Speed Rear Mech
Black, Long Cage - sku322080

Thanks
Denis