Description

Manitou Circus Comp, Match, Tower Comp, Circus Expert, Minute Expert 2012 Service Manual

You buy a suspension fork manual from some third-party reprint outfit, and the torque values are off by 10 ft-lbs. That’s how you strip an aluminum crown or blow a seal on the trail. Then you waste a Saturday waiting for the right spec. This Manitou Circus Comp, Match, Tower Comp, Circus Expert, Minute Expert 2012 Service Manual is the factory OEM document – 35 pages of what Manitou actually uses. No guesswork, no aftermarket copy. If you’re tearing into a Circus or Minute Expert fork, this is what you need on the bench.

Casting Removal and Installation – Sections 1, 2, 11, 12

The manual breaks down casting removal into two paths: standard casting (Section 1) and MRD casting (Section 2). You need to know which lower assembly your fork uses. For basic Circus Comp, Match, and Tower Comp, you start on page 4. For MRD forks like the Minute Expert, you go to Section 2. Installation is covered in Sections 11 and 12 respectively. The procedure includes loosening the pinch bolts in the correct order and using a plastic mallet. Casting removal is where most guys skip a step and ruin a bushing. This manual doesn’t let you skip.

3 Air Spring Systems: MARS, TS, ACT, ISO

Manitou used four different air spring designs across these 2012 forks. The manual dedicates separate sections to each: Section 5 for MARS, Section 6 for TS, Section 7 for ACT, and Section 8 for ISO. If you have a Circus Expert, you need Section 7 (ACT Air Service) and Section 8 (Absolute+ Service). The Minute Expert uses the MRD path with TS air (Section 6) and Absolute+ MRD (Section 9). You don’t waste time reading everything – the table on page 3 tells you exactly which sections apply to your model.

Does This Manual Cover the Minute Expert and Circus Expert?

Yes. The table of contents lists specific service paths for both Circus Expert and Minute Expert forks. For the Circus Expert, you need Sections 1, 3, 7, 8, and 10. For the Minute Expert, use Sections 2, 3, 6, 9, and 11. The manual also covers the Tower Comp and Match, which follow the Circus Comp path. So if you’re working on any of these five models, the 2012 service manual has the exact steps.

Oil Height Chart – Critical for Reassembly

Page 23 contains the oil height chart. This isn’t something you can eyeball. The chart lists oil height in millimeters for each fork model and damper type. Too much oil and the fork locks out. Too little and you get top-out clatter. The manual gives you the factory fill spec, not a range. I’ve seen aftermarket manuals print “use 10-15 wt oil” – that’s useless. This chart gives you the exact height for the Circus Comp, Match, Tower Comp, Circus Expert, and Minute Expert.

Why OEM Factory Documentation Beats Aftermarket Reprints

This is the original 2012 Manitou publication. Not a scanned copy from a third-party site. The OCR excerpt shows the actual text: “GENERAL WARNING: Suspension forks by design can contain preloaded springs, gases and fluids under extreme pressure.” Aftermarket reprints often drop those warnings or use generic torque values. The factory manual includes specific cautions like using the correct tools for aluminum components. If you damage a $400 fork because a reprint gave you the wrong preload relief procedure, that’s on you. This manual eliminates that risk.

Safety Warnings You Cannot Skip

The manual front matter includes two warnings you need to take seriously. First, the fork contains preloaded springs that must be relieved before service. Second, the gases and fluids are under extreme pressure. Page 2 states: “Failure to relieve air pressure could result in injury or possible death.” That’s not a lawyer’s boilerplate – that’s a real hazard. The manual gives you the steps to release air pressure through the Schrader valve or the ACT valve. Follow them.

A short paragraph: This manual is only 35 pages. That’s enough to cover the essentials without fluff.

For a DIY cyclist or a shop mechanic, the value is in the specific section assignments and the oil height chart. You don’t need to flip through 200 pages of generic theory. The exploded diagrams on pages 24–34 show every seal, washer, and bushing with part numbers. If you’re rebuilding a Circus Comp lower leg, you see exactly which dust seal and foam ring to order. The manual even includes the Recommended Lubricant – they specifically call for “Manitou High Performance Suspension Grease.” Using the wrong grease can swell the seals. The factory manual tells you what works.

What tools do I need for the dust seal replacement?

A seal driver and a pick. The manual lists required tools in Section 3.

How do I know which sections to use for my Circus Expert fork?

The manual has a model-to-section table on page 3. For the Circus Expert, you need Section 1 (Casting Removal), Section 3 (Dust Seal Replacement), Section 7 (ACT Air Service), Section 8 (Absolute+ Service), and Section 10 (Casting Installation). This saves you reading irrelevant sections for other fork models. Each section is labeled by model, so you can jump directly to your fork’s procedures without guesswork.

If this fork manual isn’t what you need, check out the Manitou Z80 800Z 2015 Service Manual – OEM Specs & 728 Pages or Manitou Z55 550Z 2015 Service Manual – 760 Pages OEM Factory Repair. For other vehicle systems like a Manual Transmission or Air Conditioning Compressor, we have those too. Access the Factory Manual and get it done right.