Where the weight is on your 29er

29er build spec's
Type	Brand	Model	Weight	pct. Of weight	Notes
Frame	Gravity	Point	4.18	13.69%	Bike Island
Bottom Bracket	FSA	Mega XO		0.00%	incl in crank set
Stem	Truvativ	Hussefelt 60mm stem	0.7	2.29%
Handlebar	Easton	XC70	0.3	0.98%
Seatpost	Easton	XA70	0.6	1.97%
Chainrings	RaceFace	Single Speed 34t	0.1	0.33%
Cassette	Shimano	SLX CS-HG-61 29er Cassette	0.7	2.29%	12/36t
Front Tire	Continental	MKII 2.4	1.8	5.90%
Rear Tire	Continental	MKII 2.4	1.8	5.90%
Crankset	FSA	Gravity	2.9	9.50%	removed poly bash and granny. Using race face bash alum
Tube frt	Slime	29 x 2.2	0.9	2.95%
Tubes rr	Slime	29 x 2.2	0.9	2.95%
Fork	Rock shox	Recon Silver TK 29er 100mm	4.8	15.72%
Rear Brake	Hayes	Stroker Trail	0.9	2.95%
Front Brake	Hayes	Stroker Trail	0.9	2.95%
Rear Wheel	Shimano M525 Disc	Mavic A317 29Er Wheels	5.4	17.69%
Front Wheel	Shimano M525 Disc	Mavic A317 29Er Wheels		0.00%	incl w/rear wheel
Shift Levers	Shimano	Deore	0.2	0.66%
Pedals	Wellgo	LU-A52	1	3.28%
Chain	Sram	PC 951	0.7	2.29%
Rear Derailleur	Shimano	SLX	0.6	1.97%
Saddle	WTB	Speed V	0.9	2.95%
Grips	ODI	TLD Lock on	0.251	0.82%
Total			30.531	100.00%

MTB 1x 9 drive train

Basics - Gravity crank set mega exo bb black spire stinger 29er specific cassette race face 36 tooth chain ring slx rear derailleur. 

Recently I purchased a frame an fork from bikeisland and so far have been very happy with it. I have made changes since I originally purchased it by adding a 60mm truvativ hussefelt stem, easton xc 70 685mm bar, removed the front derailleur and shifter, converted my gravity 2 speed crank to single speed, continental MKII 2.4 tires and then added a black spire stinger chain guide. I did this after many rides dialing in the bike on flat single track, fast and flowy single track and downhill rides locally and in surrounding areas.

The two biggest and best additions I have found for me is the 2.4 front and rear tire which makes the hard tail less hard and provides more contact and grip, the other was the 60 mm stem. The shorter stem took some getting used to which I did not think would happen; not only is it more comfortable placing you in a more upright position and body weight more balanced on the bike but, it really changes the handling. The steering response is quicker and more precise too. 

The other two items that made some significant improvement where the replacement of the Tora shock. Although I really liked the fork, for it to work appropriately it would have required a spring change for my weight. So I sold it for a fair price on ebay and purchased a new recon to replace it. What I really liked about the recon is the air adjust-ability. The other item was an add-on which I purchased used on Ebay. A chain guide. Sure it might not be considered a performance improvement it really is! No more chain slap which always made the hair on the back of my neck stand on end and, also no more chain jump!