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Manitou Magnum 2017
The Magnum (2017) was Manitou's first Boost fork and was built on the 34 mm Mattoc platform. It was designed to take up to 3.4" plus-sized tyres in 27+ and 29+ sizes. The 27+ version could also take 29" normal width (up to 2.5") on boost wheels. OEM versions were fitted to Specialized and Trek plus sized bikes with various custom options.
The Magnum has a firmer compression tune than the Mattoc forks due to the lower shaft speeds expected with 3+ inch wide tyres. Those running normal tyres may want a revalve. We can do this with a "shim shuffle" during service.
From 2018 the Magnum range was absorbed into the Mattoc range.
This fork is not related to the 1995 Magnum or 2001 Magnum.
Fork Details & Identification:
Brand |
Manitou |
Stanchions |
34 mm Gold |
Model |
Magnum 27+/29" and 29+ Comp or Pro |
Crown & Lowers |
Black |
Release Year/s |
2017 2018 they became Mattocs |
Decals |
Large Manitou graphic & M on other leg |
Damper |
Pro - Manitou MC2 with adjustable HSC, LSC, HBO and LSR Comp - Manitou ABS+ with adjustable LSC and LSR |
Wheel Size |
Boost 27+ (also fit 29") with 110x15 axle Boost 29+ with 110x15 axle |
Spring |
Pro - Dorado air spring with self balancing positive and negative chambers Comp - TS Air spring with coil negative. |
Configurations & Maximum Travel |
Boost 27+/29" 140 mm Boost 29+ 120 mm |
Upgrades:
Make your Magnum even better with these upgrades. Purchase either with a Shockcraft service or for DIY installation. Pricing is provided at links below.
High Flow Piston (Pro only) |
These pistons greatly increase oil flow on sharp impacts and on very rough ground at speed, increasing reaction speed, removing high speed harshness and allowing more compression damping to be run |
Infinite Rate Tune (IRT) |
Adds a second individually tunable air chamber to the positive air side of Magnum forks |
Sealing Upgrades Internal |
Internal seal upgrade to reduce bath oil migration. Included in Shockcraft Full Service. |
Wiper Seal Upgrade |
Low friction seals with foam rings for all Manitou 34 mm forks |
Fluids:
Stock |
Maxima 5 wt fork oil in damper - 75 mm oil height Pro, 87 mm Comp Motorex 5W40 Semibath lower leg - 15 cc per side Slickoleum - air piston & seals |
Shockcraft Recommended |
Motorex 2.5 wt fork oil or Hot Oil Pink damper oil Motorex Fully Synthetic or Supergliss lower leg bath oil Slickoleum - air piston & seals |
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Clamp Block Manitou Fork Single Crown (Shockcraft)Clamp block for servicing Manitou single crown fork dampers
Designed and manufactured by Shockcraft
CNC machined from aluminium for a solid clamp with no scratching
5 clamp sizes - 8 to 22.2 mm
Shockcraft Part Code: SC-CLAMP-MAN-SC-V1 Learn MoreUS$115.47 -
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Fork Bushing Burnishing (Shockcraft)Final sizing and tolerancing of fork bushings to ensure minimal friction and maximum performance. Cures issue of friction and stiction to improve small bump control. Also reduces break-in time of a new fork to zero.
Learn More
Burnish sizes are carefully chosen to provide maximum oil film thickness without any knocking or noticable play.
Available immediately for 30 mm, 32 mm, 34 mm, 35 mm and 36 mm forks. Other sizes will have a slight delay as we manufacture tooling.From US$22.59
To US$32.63
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-42%Fork Oil 2.5 wt (Motorex)Motorex 2.5 wt fork oil - 15 cSt @ 40°C
Learn More
Available in 250 ml or 1 L bottles
Refill Bottles - also available in refill bottles hereAs low as US$8.10 -
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-42%Fork Oil 4 wt (Motorex)Motorex 4 wt fork oil
Learn More
16 cSt @ 40°C
Fox Racing Shox use Motorex 4wt oil in its MY21 DHX2 and FLOAT X2 shocks
Available in 250 ml or 1 L bottles
Refill Bottles - also available in refill bottles hereAs low as US$8.10 -
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Fork Oil Selection ChartsTry our simple fork oil selection charts to find out which oil you need for your brand of fork, terrain, climate and riding. Learn MoreUS$0.00 -
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Fork Service Kit for Manitou 34 mm ForksFork service kit containing fork seal kit, internal seal kit, fork oil, bushing lubricant, Slickoleum assembly grease and oil syringe Learn MoreFrom US$2.01
To US$359.22
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Fork Service Kit for Manitou Mastodon Comp 2018+ ForksFork service kit containing fork seal kit, internal seal kit, fork oil, bushing lubricant, Slickoleum assembly grease and oil syringe
Application is Manitou Mastodon Comp forks 2018+ Learn MoreFrom US$2.01
To US$633.09
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Fork Service Kit for Manitou Mastodon Pro 2018+ ForksFork service kit containing fork seal kit, internal seal kit, fork oil, bushing lubricant, Slickoleum assembly grease and oil syringe
Application is Manitou Mastodon Pro forks 2018+. Learn MoreFrom US$2.51
To US$1,999.00
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Fork Service Kit for Manitou Mattoc Comp 2018+ ForksFork service kit containing fork seal kit, internal seal kit, fork oil, bushing lubricant, Slickoleum assembly grease and oil syringe
Application is Manitou Mattoc/Magnum Comp forks 2018+
See Related Products for details on components of this service kit Learn MoreFrom US$2.01
To US$815.74
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Fork Service Kit for Manitou Mattoc Expert 2014-18 ForksFork service kit containing fork seal kit, internal seal kit, fork oil, bushing lubricant, Slickoleum assembly grease and oil syringe
Application is Manitou Mattoc Expert forks 2014-18
See Related Products for details on components of this service kit Learn MoreFrom US$2.01
To US$1,902.23
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Fork Service Kit for Manitou Mattoc Pro 2014-20 ForksFork service kit containing fork seal kit, internal seal kit, fork oil, bushing lubricant, Slickoleum assembly grease and oil syringe
Application is Manitou Mattoc Pro forks 2014-20
See Related Products for details on components of this service kit Learn MoreFrom US$2.51
To US$2,059.99
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Fork Service Kit for Manitou R7 2006-18 ForksFork service kit containing fork seal kit, internal seal kit, fork oil, bushing lubricant, Slickoleum assembly grease and oil syringe
Application is Manitou R7 Forks 2006-18 except for MRD
See Related Products for details on components of this service kit Learn MoreFrom US$15.06
To US$1,634.70 Regular Price US$2,008.92
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Fully Synthetic Fork Bushing Lubricant 250 to 1000 cc (Motorex)Motorex Fully Synthetic lubricating oil for air pistons and suspension forks lower leg bushings.
Learn More
Manitou use this exact oil as Semi-Bath fork lubrication.
Specifications:
5W40 grade
88 cSt @ 40C
Pour Point <-50C
This is a slightly less awesome lubricant than Motorex Supergliss but works over a wider temperature range and is better in the cold.As low as US$11.60
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Hexlock SL Installation Tool (Manitou)Tool for installing and removing captive bolt retainer on Manitou Hexlock SL equipped forks
Fits 1/4" driver
Manitou Part Code: 141-33397 Learn MoreUS$47.31 -
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Hot Oil Pink 250 cc (Shockcraft)Hot Oil Pink 250 cc for rear shocks and fork cartridge dampers
Learn More
14 cSt @ 40°CUS$11.60 -
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Magnum Pro 29" CSA/CSU 120 mm Matte Black (Manitou)Manitou Part Code: 141-32155-K002 Learn MoreUS$261.06 -
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Manitou 34 mm Fork Seal Kit Low Friction Flanged (OE)Alternative product: 34 mm Fork Seal Kit Low Friction Flangeless (Manitou)
Learn More
Kit includes 2 high quality Trelleborg Flanged seals, 2 foam rings and Slickoleum grease.
Fits 34 mm stanchioned Manitou forks from 2006 to present.
Flanged type for 44mm pocket.
Special compound for low friction & extreme low temperature performance
These flanged seals have the same fork compatibility as the flangeless option.
Flangeless seals provide a tighter fit into the lower leg (to resist popping out with internal air leaks) which makes them more difficult to install than flanged seals.
A seal press tool is not essential for installation of the flanged seals but it does make the job easier.
Manitou Part Code: 141-34000
Replaces Part Numbers 141-30996-K007 & 83-2969US$34.64 -
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Manitou 34 mm Fork Seal Kit Low Friction Flangeless (Manitou)Kit includes 2 high quality flangeless seals, 2 foam rings and Slickoleum grease.
Fits 34 mm stanchioned Manitou forks from 2006 to present.
Flanged type for 44mm pocket.
Special compound for low friction & extreme low temperature performance.
These flangeless seals have the same fork compatibility as the flanged option
Flangeless seals provide a tighter fit into the lower leg (to resist popping out with internal air leaks) which makes them more difficult to install than flanged seals
We recommend the use of a seal press tool for installation to keep flangeles seals straight and set depth correctly.
Manitou Part Code: 141-39022-K020
Replaces Part Numbers 141-34000, 141-30996-K007 & 83-2969 Learn MoreUS$39.41 -
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Manitou Magnum 2017 Lower Leg & Air Spring Service & UpgradesLower leg & air spring service pricing for Manitou Magnum 2017
Includes labour, consumables and fluids
Excludes wiper seals, repairs & repair parts
Select special service & upgrade options to view pricing Learn MoreAs low as US$92.87
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Manitou Magnum 34 mm 2017 Service, Tuning & Upgrade PricingFull service pricing for Manitou Magnum 2017
Includes labour, consumables and fluids
Excludes wiper seals, repairs & repair parts
Select special service, upgrade & tuning options to view pricing Learn MoreAs low as US$123.00
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Manitou Mattoc Pro Internal Seal Kit (Shockcraft)Application: Manitou Mattoc Pro, Mastodon Pro, Magnum Pro
Kit includes o-rings & quad rings for MC2 dampers & Dorado Air spring (with IRT), and a travel check o-ring
Does not include foot seals (available separately here for Mattoc/Mastodon/Magnum forks)
PDF showing contents of kit is available here Learn MoreUS$26.73 -
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Mattoc / Mastodon / Magnum Air Piston Kit (Manitou)31 mm Pro and Expert piston assembly with seal and Slickoleum assembly grease
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Replacement air piston for Manitou Mattoc, Magnum (2015-17) & Mastodon forks with Dorado Air spring system (valve underneath by axle)
Upgrade air piston for 2014 Mattoc forks which had the piston with the single white glide-ring
Manitou Part Code: 141-30996-K023US$49.45 -
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Mattoc / Mastodon / Magnum Rebuild Kit (Manitou)Complete rebuild kit for Manitou Mastodon, Mattoc and Magnum Forks
Includes 34 mm wiper seals, foam rings, damper and air seals and grease.
Manitou Part Code: HB-141-28528-K008 Learn MoreUS$49.45 -
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Mattoc/Magnum IRT Upgrade Kit (Manitou)IRT: Infinite Rate Tune
Adds a second air chamber for independent tuning of mid-end stroke.
Coarse thread M32x1.0mm for 2014-2019 Mattoc, Magnum, Mastodon Pro and Expert level forks.
Manitou Part Code: 141-32668-K003 Learn MoreUS$93.50 -
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Mattoc/Magnum Tool Kit (Manitou)Specialty three piece tool kit for servicing all Manitou 34 and 37 mm forks
Manitou Part Code: 172-31133 Learn MoreUS$75.68
Manitou Magnum 2017
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