Trek "Deaktiv" Conversion

Shock conversion kit to replace a trunnion mount Reaktiv shock on a Trek Rail with a metric eyelet shock.
Kit contains a pair of custom manufactured pins which use the original trunnion bolts and spacers.
54mm Upper pin duplicates the original trunnion shock dimensions and threads.
40mm Lower pin is centered.
Both feature an internal hex to allow easy removal of stuck bolts.

Rail requires a 230x57.5mm shock and clearance is tight.  You likely need a custom build shock to fit 60mm.

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Trek spacer 16 x 10 x 3 mm
Sold individually

Trek Part Code: W529969 Learn More

Shock conversion kit to replace a trunnion mount Reaktiv shock on a Trek Fuel, Remedy or Slash with a metric eyelet shock.
Kit contains a pair of custom manufactured pins which use the original trunnion bolts and spacers.
54mm Upper pin duplicates the original trunnion shock dimensions and threads.
50mm Lower pin with offset collars for MY2018-2020 Remedy, Slash & Fuel EX130
40mm Lower pin for MY2021-23 Slash & Rail

All feature an internal hex to allow easy removal of stuck bolts.

Fuel requires a 210x52.5mm shock or 210x50mm depending on size and year.
Slash & Remedy require a 230x57.5 or 230x60mm shock.
Slash MY2021-23 require a 230x62.5mm shock.

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Shock trunnion bolt kit to fit Trek Fuel, Remedy, Rail and Slash Bikes
Works with our Deaktiv Shock Pin Kits

Kit includes 4x Trek spacers (select size required for your frame), 2x Trek Trunnion M10 x 16 mm bolts and 2x Heavy Duty M10 Bolts
See Related Products for details on each part or to purchase separately

Note picture shows older version of our Heavy Duty M10 bolts, see new version as shown here Learn More

Shock Hardware Kit - 10 x 60 mm, 7 piece (FOX)

10 mm bolt hole, 60 mm total width
Contains one pair of 1/2" flanged polymer bushings, stainless steel pin, two collars and o-rings
Fits almost all Fox rear shocks
Fits top end of shocks fitted to non-thru shaft Trek Fuel EX 2017-19

Fox Part Code: 803-03-321 Learn More

Fits Full Floater non-thru shaft Trek Fuel EX 2017-19.

Top End Shock Hardware:
10 x 60 mm, 7 piece kit (Fox)
10 mm bolt hole, 60 mm total width
Contains one pair of 1/2" flanged polymer bushings, stainless steel pin, two collars and o-rings
Fits almost all Fox rear shocks

Lower End Shock Hardware:
8 x 49.8 mm, 5 piece kit (Fox)
8 mm bolt hole, 1.960 inch (49.8 mm) total width
Offset collars
Contains one pair of 1/2" flanged polymer bushings, aluminim pin, two collars and o-rings.
Fits almost all Fox rear shocks


Fox Part Code;  803-03-229
Fox Part Code: 803-03-321


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Conversion kit to fit a Marzocchi Bomber CR Coil shock to a Trek Rail.
Rail Reaktiv shocks are 230 x 57.5 mm air spring with 40mm lower trunnion hardware
Product includes Lift Kit with conversion pin, Marzocchi Bomber CR 205 mm trunnion shock and coil spring

Resulting combination bolts straight in.  The lift kit keeps the piggy back clear of the down-tube.

Choosing the right spring: use one of our spring rate calculators over here to make sure you get the right spring for your bike geometry and weight.  Email us to have the calculator price credited and used towards purchase of your Marzocchi Bomber CR shock.

Please contact us to confirm availability

Tuning for your weight and riding style is also available - details here

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Trek trunnion bolt,  M10 x 1.0 x 16 mm
Sold individually

Trek Part Code: W561881 Learn More

Custom Hardware for fitting a Marzocchi Bomber CR Coil shock to a Trek Slash 2021+ in place of a Thru-Shaft Reaktiv shock
2021+ Slash uses a 230 x 62.5 mm shock with 54 mm top and 40 mm lower centred hardware
Product includes conversion pins, DU Bushings, Marzocchi Bomber CR 230 x 60 mm OR 230 x 65 mm coil shock and coil spring

If using a Marzocchi Bomber CR 230 x 60 mm no additional spacers/labour required to fit but you will lose some travel
If using a Marzocchi Bomber CR 230 x 65 mm then a stroke reduction is required with shock head removal & re-gas

We can change the stroke on this shock from 0-65 mm

Resulting combination bolts straight in

Choosing the right spring: use one of our spring rate calculators over here to make sure you get the right spring for your bike geometry and weight.  Email us to have the calculator price credited and used towards purchase of your Marzocchi Bomber CR shock.

Please contact us to confirm availability

Tuning for your weight and riding style is also available - details here

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Custom Hardware and shock stroke modification to fit a Manitou Mara GEN 1 Inline to a Trek Remedy or Slash with Thru-Shaft Reaktiv
Thru Shaft Reaktiv shocks are 230 x 57.5 mm air spring with lower hardware offset to one side
This conversion allows fitment of a Manitou Mara Inline 230 x 60 or 65 mm air shock
Optional travel reduction on the shock to 57.5 mm and fitting custom shock pins.

Resulting combination bolts straight in.

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Custom Hardware for fitting a Marzocchi Bomber CR Coil shock to a Trek Remedy 2019-21 & Slash 2018-20 in place of a Thru-Shaft Reaktiv shock.
2019-2021 Remedy & 2018-2020 Slash Thru Shaft Reaktiv shocks are 230 x 57.5 mm air spring with upper 54 mm pin and lower 50 mm offset pin.
Product includes conversion pins, DU Bushings, Marzocchi Bomber CR 230 x 60 mm OR 230 x 65 mm coil shock and coil spring.
We can change the stroke on this shock from 0-65 mm.

Resulting combination bolts straight in.

Choosing the right spring: use one of our spring rate calculators over here to make sure you get the right spring for your bike geometry and weight.  Email us to have the calculator price credited and used towards purchase of your Marzocchi Bomber CR shock.

Please contact us to confirm availability.

Tuning for your weight and riding style is also available - details here

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Cane Creek Kisuma Coil shock with custom hardware to fit a Trek Slash or Remedy with Thru-Shaft Reaktiv
2018-2020 Thru Shaft Reaktiv shocks are 230 x 57.5 mm air spring with lower hardware offset to one side
Product includes Shockcraft Deaktiv conversion pins, Cane Creek Kitsuma 230 x 57.5 mm coil shock and coil spring

Resulting combination bolts straight in

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Trek spacer 16 x 10 x 5 mm
Sold individually

Trek Part Code: W536414 Learn More

Shockcraft Lift Kit for Trek Remedy, Slash, Rail or Fuel
Allows installation of 205x60-65mm Remedy/Slash Rail
or 185x52.5-55 mm Fuel EX130 Trunnion shock
Increases piggy-back to frame clearance
Available with 40 mm centred or 50mm offset pin.

Shockcraft Part Code: SC-LK-25-TREK

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Conversion kit & modifications to fit a Marzocchi Bomber CR 230mm Coil shock to a Trek Rail.
Rail Reaktiv shocks are 230 x 57.5 mm air spring with 40mm lower trunnion hardware
Product includes Shock piggyback shortening, stroke change and Deaktiv Pin pin.
Shock is optional or customer supplied.

Resulting combination bolts straight in.  The stroke reduction and modifications keep the piggy back clear of the down-tube.

Choosing the right spring: use one of our spring rate calculators over here to make sure you get the right spring for your bike geometry and weight.  Email us to have the calculator price credited and used towards purchase of your Marzocchi Bomber CR shock.

Please contact us to confirm availability

Tuning for your weight and riding style is also available - details here

Learn More

Custom Hardware for fitting a Manitou Mara GEN 1 Inline Air shock to a Trek Rail with Thru-Shaft Reaktiv
Thru Shaft Reaktiv shocks are 230 x 57.5 mm air spring with lower hardware offset to one side
Product includes conversion pins and Manitou Mara Inline 230 x 60 mm

Resulting combination bolts straight in.  The Manitou Mara Inline in stock form has firm 4 stage compression damping and is suited to XC style riding.  We recommend a piggy back shock for more aggressive riders (Mara Pro).  Tuning for your weight and riding style is also available.

Please contact us to confirm availability

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Manitou Mara Pro Gen2 Air shock with conversion kit to fit a Trek Rail with Thru-Shaft Reaktiv
Thru Shaft Reaktiv shocks are 230 x 57.5 mm air spring with lower hardware offset to one side
Product includes Mara Pro Shock, Shockraft Lift Kit with conversion pin.
Optional tuning and heavy duty bolt kit.

Resulting combination bolts straight in.  The Manitou Mara Pro has adjustable HS & LS comprssion and is suited to all riding styles.  Tuning for your weight and riding style is also available - details here

Please contact us to confirm availability

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Heavy Duty trunnion bolt - Stainless Steel
M10x1.0 thread, 16mm to flange, 16mm flange
Sold individually but required in pairs.

Shockcraft Part Code:  SC-TBHD-10x16 Learn More

Custom shock modifications and optional hardware to fit a Super Deluxe Coil to Trek Remedy or Slash with Thru-Shaft Reaktiv.
Thru Shaft Reaktiv shocks are 230x 57.5mm air spring with lower hardware offset to one side.
Requires a Rockshox Super Deluxe 230x60mm coil with ball bearing lower mount.
A 230 x 65mm shock can be used with a travel reducing spacer to give 57.5 or 60mm stroke.
Modification service involves removing and modifying the ball bearing shaft head to fit custom shock pins.

Pricing options cover customer supplied pins (from non-thru-shaft air shock) or Shockcraft manufacture.  De-select Shockcraft Manufactured Pins if not required.

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Shock conversion kit to replace an eyelet mounted Reaktiv shock on a Trek Fuel, Remedy or Slash with a metric eyelet shock.
Kit contains a pair of pins (one custom manufactured) which use the original 10 mm bolts and spacers.
60 mm Upper pin is 10 mm ID, 15mm OD and duplicates the original pressed in pin with no bushing.
50 mm Lower pin is 10 mm ID, 12.7mm OD and offset to one side.
Both require use of the original 10 mm mounting bolts and spacers.

Fuel requires a 210 x 55 mm shock.
Slash & Remedy require a 230 x 57.5 or 230 x 60 mm shock.

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Shock Hardware Kit - 8 x 49.8 mm, 5 piece (FOX)

8 mm bolt hole, 1.960 inch (49.8 mm) total width
Offset collars
Contains one pair of 1/2" flanged polymer bushings, aluminim pin, two collars and o-rings.
Fits almost all Fox rear shocks
Fits lower end of shocks fitted to non-thru shaft Trek Fuel EX 2017-19

Fox Part Code;  803-03-229 Learn More