ATLAS FR SHIFTING CHAINGUIDE
TOOLS REQUIRED: • 4, 5, & 6mm Hex Key • External BB Cup Spline Tool • Crank removal tools • 8mm long handle allen key for RF X-Type cranks • check with crank manufacturer for tools required to remove non RF X-Type crank COMPATIBILITY: The Atlas FR Chain-Guide will fit frames equipped with or without ISCG mounting tabs. It is designed to be used with an external BB or drive side flanged BB cup with English threads only. INSTALLATION 1. Remove the right hand (drive side) crank arm (use an 8mm long handle Hex key or crank puller for RF cranks or consult the manufacturer of non RF cranks for specific removal instructions). 2. Remove the right hand (drive side) bottom bracket (BB) Cup 3. Install the Atlas FR shifting chain guide boomerang directly behind the drive side BB Cup in place of one standard 2.5mm BB cup spacer, see figures 3 & 4 for configuration details.
5. Tighten down the drive side BB cup to clamp the boomerang in place. 6. Reinstall the crank. *Spacing guidelines are shown in figures 3 & 4 for RF X-type cranks. You may need to remove your left hand crank to access the 1 mm spacers depending on your install setup. Check that there is no interference of chain ring bolts when rotating your crank. 1mm chain line adjustment spacers can be swapped from drive side to non-drive sides and vice versa to fine tune your spacing. 7. Adjust the position of the lower boomerang arm utilizing the M6 bolts from behind the crank or the M5 bolts from the front side of the crank if they are exposed, see figure 6. Ensure that the chain is being wrapped up and around the pulley wheel while in the mid ring. figure 6
1. ROTATE ATLAS FR BOOM 2. ALIGN ANIT-ROTATION HOLE ON BOOM WITH ONE ISCG TAB HOLE 3. INSTALL ANTI-ROTATION BOLT LOWER ARM ADJUSTMENT BOLTS TORQUE BOLTS BETWEEN 8-10nM
figure 3
8. Adjust the position of the pulley wheel using an M4 hex key so that the outer flange has a 0.5-2mm gap between it and the bash guard as shown in figure 7. 9. Adjust the position of the upper guide plastic piece using a M5 hex key to ensure there is a 0.5-1.5mm gap between the inside edge and the bash guard as shown in figure 7.
5mm gap min.
figure 7
0.5-1.5mm gap
figure 4
4. Orient the boomerang to a position where the upper guide plastic part is in the 1-2 o’clock position with a minimum gap of 5mm from the front derailleur. If you have ISCG tabs on your frame align one of the boomerang anti-rotation holes with one of your ISCG tabs. Then install either the low (73/100mm BB) or high head (68/83mm BB) anti-rotation bolt, see figure 6.
0.5-2.0mm gap MAINTENANCE: 1. Periodically clean the pulley wheel as dirt and mud can accumulate and affect performance. You can use a lubricant on the pulley wheel bushing to help keep it rotating smoothly. 2. Inspect plastic parts for wear and replace if necessary.
figure 5
WARRANTY: For warranty information on each product, visit www.raceface.com USAGE: • This product is intended for XC/AM/FR usage utilizing a front derailleur and bash ring. • The RF Atlas FR Chain Guide is designed to work seamlessly with any of your RF double and bash crank sets. • The guide accommodates a maximum mid ring chain ring size of 36T.
UNIT 100 - 100 BRAID STREET, NEW WESTMINSTER, BC, CANADA, V3L 3P4 phone: 604.527.9996 fax: 604.527.9959 web: www.raceface.com B60004 (08/09)
CHAIN GUIDE COMPATIBILITY GUIDE
BB SHELL SIZE
RF PART NUMBER RF DESCRIPTION DUAL RING GUIDE ATLAS CG09AF36 CHAINGUIDE,09,36T BASH GUARD SINGLE RING GUIDE 2006 MODEL YEAR DIABOLUS CG36 CHAINGUIDE, 36T BASH GUARD CG40 CHAINGUIDE, 40T BASH GUARD 2008 MODEL YEAR DIABOLUS D2 CG0836 CHAINGUIDE,08,36T BASH GUARD CG0840 CHAINGUIDE,08,40T BASH GUARD CG0836ISCG05 CHAINGUIDE,08,ISCG05,36T BASH GUARD CG0840ISCG05 CHAINGUIDE,08,ISCG05,40T BASH GUARD
59.24mm P.C.D.
FULL SUSPENSION BB SHELL CLEARANCE ABOVE CLEARANCE ABOVE PIVOT 102mm FROM CENTER 115mm FROM CENTER OF OF BB BB DESIGNS
ELEVATED PIVOT ELEVATED PIVOT FRAMES WITH PIVOT FRAMES WITH PIVOT
ISCG
ISCG05
UNDER 42mm IN O.D. (MOST ALUMINUM FRAMES)
YES
NO
YES
NO
YES
YES
NO
YES YES
NO NO
YES YES
YES YES
NO NO
YES YES
YES YES
YES YES NO NO
NO NO YES YES
YES YES YES YES
YES YES YES YES
NO NO NO NO
YES YES YES YES
YES YES YES YES
BB SHELL SIZE
OVER 42mm IN O.D.
73mm P.C.D.
50º
47.8 mm
ISCG
55.9 mm
ISCG ‘05
BB SHELL O.D. (under 42mm for ATLAS FR guide compatability)
REGULAR B B
Single Pivot clearance radius SINGL E P I V O T F R A M E
BB SHELL PIVOT FRAME
NOTES : ***Carbon frames have reinforced BB shells and may exceed the 42mm clearance required for the Atlas FR Guide compatibility. ***This document is to be used as a general guideline for choosing the correct Race Face chain guide for your frame type. Due to the variation of frame and crank designs in the market it is best to consult and utilize your local dealer for specific guide/crank/frame installation.