Intense M6 DH Bike

Specs

2008 Intense M6, Medium S/N #PM-84309
2.6:1 Leverage ratio
8" travel front
9.3" travel rear
IGCG-05 Guide Mount
8" front rotor
7" rear rotor

Gearing

The bike is currently geared with a 32 tooth chainring and an 11-32 9 speed cassette. This is so that I can actually (Ha! The pain.) ride the bike on some of my local trails. I will bring that up to 36 tooth chainring for chairlifting.

A 36 chainring is a little low for a real DH bike, but since I'm not racing I figure that the lower gear will help me quite a bit when traversing to fun trails away from the lifts.

Crank Length

I got a good deal at a local swap for some 175mm and 165mm Saint cranks (83mm BB). The 175mm cranks are just too long. I wish that I had some 170mm cranks to try. I'm sure that the 165mm cranks will be nice when I'm going big.

165mm Cranks work perfect.

Handlebar & Stem

Point 1 Racing Split Second DM Stem, 50mm length. 0mm rise. (60mm will be preferred)
Point 1 Racing Time Capsule Steerer Cap, 15mm
Truvative Team Riser Bar, 25mm Rise, 710mm wide

Fork

2009 Fox 40

Springs

039-05-070, 30 lb/in, Black, for <90-120 lb. rider
039-05-071, 35 lb/in, Purple, for 120-150 lb. rider (Current)
039-05-062, 40 lb/in, Blue, for 150-180 lb. rider (Stock)
039-05-073, 45 lb/in, Green, for 180-210 lb. rider
039-05-074, 50 lb/in, Yellow, for 210->240 lb. rider

Suggested Sag

15-25%

Measured Sags

43mm (24%) w/ 40 lb/in spring w/ 0mm preload
50mm (25%) w/ 35 lb/in spring w/ 0mm preload

Valving

Supposedly, 2009 40's are:

16.6x0.1
15.5x0.15
13.5x0.15
9.6x0.25

Oil

I used Red Line Medium for both lube and damping on the last build. We will see how this goes.

Bottom Out Valving

The fork comes with the maximum amount of bottoming resistance. I moved that to the minimum. That should really help the fork out. It looked that the max was the lat 45mm of travel. It's now down to about the last 10mm of travel.

Shock & Spring

Shock

Labled "Manitou SFS Intrinsic - Revox ISX"
267mm (10.50") eye to eye
90mm (3.50") stroke
15mm bump stop
SPV Pressure - 50-175 psi, 50-70% of body weight (90-126 psi), fill with volume set at #1 and compression at full open both slow and fast.
Suggested sag for downhill - 30-45% (240-231mm eye to eye)
Product web page
Service Guide

Spring

Labled "Manitou 350x3.5"
193mm Free Length
Max preload 8mm or 185mm length (=18mm compression for pvd)
Min preload 1mm or 192mm length
36mm ID
54mm OD
351 lbs/in measured rate of first inch.
250# PN: 85-6850
300# PN: 85-6851
350# PN: 85-6852
400# PN: 85-6853 (BTI SKU 33.540)
450# PN: 85-6854 (BTI SKU 33.545)

Measured Rear Spring Rates

350 x 3.5 Spring

193mm Free Length
0.0" - 0.5" = 344 lb/in
0.5" - 1.0" = 354 lb/in
1.0" - 1.5" = 358 lb/in
1.5" - 2.0" = 364 lb/in

400 x 3.5 Spring

192mm Free Length
0.0" - 0.5" = 362 lb/in
0.5" - 1.0" = 388 lb/in
1.0" - 1.5" = 398 lb/in
1.5" - 2.0" = 402 lb/in

450 x 3.5 Spring

191mm Free Length
0.0" - 0.5" = 415 lb/in
0.5" - 1.0" = 432 lb/in
1.0" - 1.5" = 442 lb/in
1.5" - 2.0" = 452 lb/in

Shock Reducers

Top Spacing - 40mm
Lower Spacing - 1.3125"
0.500" Busing width
12mm Bushing Bore
8mm Thru bolts
0.625" Shoulder

Parts Spec

2009 Fox 40 Fork
Risse flat top clamp
2009 Shimano Saint cranks, deraillure and shifter
2008 Shimano Deore XT 11-32 Cassette for trail, SLX 11-28 for DH
2008 Shimano DX Clipless Pedals
2009 Saint Brakes
203mm Front & 180mm Rear 6 bolt Rotors
E13 LG1 Chainguide/Skidplate, 32-36t
Race Face 32 Tooth DH Chainring (35T for DH)
Shimano Dura-ace 10spd chain
Point One Racing DM Stem, 50mm, 31.8mm
Truvative Team Riser Bar, XC/DH low rise bars, 31.8mm, 25mm Rise, 680mm wide
Cane Creek hybrid headset, 1.5" Lower, XX top.
Thomson Elite seatpost, 31.6mm
WTB Devo TI Rail saddle
Michelin Mountain X'trem 2.2" UST DH F&R
Hadley DH 150mm rear hub (32 hole)
Hadley DH 20mm front hub (32 hole)
Mavic EX823 Disc DH UST rims
ODI Lock-on grips, Rouge
Salsa 35mm seat post binder
Modified stainless steel fasteners throught
DMC Moto-Trainer timer

Weight

39.5 lbs.

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