RockShox ZEB Ultimate RC2 DebonAir+ Boost 29" Suspension Fork

The RockShox ZEB Ultimate RC2 DebonAir+ Boost Suspension Fork for 29" wheels is at home on enduro trails with vibration-absorbing ButterCups

The RockShox ZEB Boost 29" suspension fork for enduro bikes comes in the Ultimate configuration with Charger 3 RC2 damper and DebonAir+ air spring, which are supported by ButterCups. The completely independent adjustment of high and low-speed compression damping enables precision tuning and saves you from having to calculate the interplay. The DebonAir+ air spring impresses with excellent response and confidence-inspiring control. Another highlight are the ButterCups, which absorb 20% of those small but incessant vibrations that make life difficult for your arms and hands on long, bumpy trails. The Ultimate bushings are 53% longer than the previous model and have a higher overlap area for low-friction operation. Pressure relief valves allow the air pressure in the immersion tubes to be easily adjusted to the environment.

Guidelines for Replacing E-bike Components:

Before you replace components on your e-bike, please read through the guidelines for component replacement for CE-marked e-bikes/pedelecs with pedal assistance.

Specifications:

Application:

Enduro

Wheel Size:

29"

Suspension Type:

air

Travel:

160 mm, 170 mm, 180 mm, 190 mm

Steerer Tube:

1 1/8" - 1.5" tapered

Axle Type:

thru-axle

Wheel Standard:

15 x 110 mm (Boost)

Brake Mount:

disc PM8 (direct mount 200 mm)

Technical Information:

Offset:

44 mm

Steerer Tube Length:

265 mm

Steerer Tube Diameter (Stem):

28.6 mm

Steerer Tube Diameter (Crown Race):

40 mm

Over Locknut Dimension:

110 mm

Stanchion Tube Diameter:

38 mm

Steerer Tube Material:

Aluminium

Crown Material:

Aluminium

Stanchion Tube Material:

Aluminium

Lower Tube Material:

magnesium

Adjustment Options:

Compression:

low-speed, high-speed

Rebound:

low-speed

Suspension Stiffness:

air pressure adjust

Remote:

no

Travel Adjustment:

no

Approved For:

Tyre Size (max.):

29 x 3.1"

Note:

For individual tyres, tyre clearance must be checked with the fork fully compressed and the tyre fully inflated. It should be at least 6 mm all around.

Rotor Size (max.):

220 mm

Features:

• Charger 3 RC2 damping with fully independent adjustment of low and high speed compression through IFP design enables precise tuning
• ButterCups for smooth riding absorb 20% of lighter, high-frequency vibrations and thus prevent fatigue
• DebonAir+ air spring with more volume than DebonAir absorbs smaller bumps even better and at the same time stands higher in the suspension travel
• reduced friction due to longer Ultimate bushings than the previous model with higher overlap
• pressure relief valves release excess air pressure in the immersion tubes at the push of a button, adjustment of the air pressure to the environment
• 38 mm standpipe diameter for high rigidity
• low-friction SKF wiper seals for high durability and good suspension behaviour
• with Maxima Plush Dynamic Suspension Lube for low friction and good durability
• crown adjust
• torque cap dropouts for increased stiffness
• with screw-on torque cap adapters for simplified use with standard end caps
• also suitable for e-bikes
• fork crown outer diameter: 59 mm

Models:

160 mm / 1.5 tapered / 15 x 110 mm / 44 mm:

Travel:

160 mm

Offset:

44 mm

Axle to Crown:

576 mm

Model ID:

FS-ZEB-ULT-A2

Manufacturer Numbers:

00.4020.819.011 (gloss black), 00.4020.819.015 (grey)

170 mm / 1.5 tapered / 15 x 110 mm / 44 mm:

Travel:

170 mm

Offset:

44 mm

Axle to Crown:

586 mm

Model ID:

FS-ZEB-ULT-A2

Manufacturer Numbers:

00.4020.819.010 (gloss black), 00.4020.819.014 (grey)

180 mm / 1.5 tapered / 15 x 110 mm / 44 mm:

Travel:

180 mm

Offset:

44 mm

Axle to Crown:

596 mm

Model ID:

FS-ZEB-ULT-A2

Manufacturer Numbers:

00.4020.819.009 (gloss black), 00.4020.819.013 (grey)

190 mm / 1.5 tapered / 15 x 110 mm / 44 mm:

Travel:

190 mm

Offset:

44 mm

Axle to Crown:

606 mm

Model ID:

FS-ZEB-ULT-A2

Manufacturer Numbers:

00.4020.819.008 (gloss black), 00.4020.819.012 (grey)

Contents:

• 1 x RockShox ZEB Ultimate RC2 DebonAir+ Boost 29" Suspension Fork
• 1 x RockShox Maxle Stealth thru-axle
• 1 x RockShox fender
• 2 x RockShox bottomless tokens
• 1 x star nut
• 2 x RockShox end cap adapters
• 2 x bolts