Spring Kit Firm for Bomber Z1 Coil 2021 (Marzocchi)
Also fits Fox F36 with conversion kit.
Firm - Green is 45 lb/in, 305mm long and 28.2mm OD.

Foxzocchi Part code: 820-03-658-KIT Learn More

Spring Kit Medium for Bomber Z1 Coil 2021 (Marzocchi)
Also fits Fox F36 with conversion kit.
Medium - Blue is 40 lb/in, 302mm long and 28.2mm OD.

Foxzocchi Part code: 820-03-657-KIT

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Shockcraft manufactured 20 mm axle cap for Marzocchi R380 forks
M16 fine thread.
Stronger version with thicker flange to replace original which can crack the flange off Learn More

Rockeater tune for 2020+ Marzocchi Bomber CR Coil Shocks either new or with service.
Also fits 2011+ Fox Van R and RC Coil shocks (with or without compression adjust)

Excludes repairs & any additional repair parts
Excludes springs and pivot hardware

Rockeater Damper Upgrades & Tuning
Send us your rear shock and we will upgrade with with new piston and damping circuits then tune it.
Rockeater tunes for rear shocks are targetted at 400lb/in spring-rates.  They will work very well for 350-450lb/in range and still better than stock for 300 & 500lb/in sprung riders.

The upgrades replace the main piston and all shim stacks inside the shock.  Replacing the harsh base-valve conical washers with custom designed metric shim stacks.  The shock is then tuned for a rider using a 400lb/in spring.  Making this shock fun and predictable without harshness & lag.  Increases both support and compliance.

Only available from Shockcraft.
Includes calculations, labour, upgrade parts, consumables and fluids for rear shocks in good working condition.

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For the first time, Vorsprung has created an air spring with a truly better spring rate, everywhere in the travel, than a coil.  The Secus upgrade delivers the first and only single crown air spring system to really come indistinguishably close to the linear spring rate of a coil fork for the entire first 2/3rds of its travel, with the advantage of a gentle end stroke progression to prevent bottoming without the “wall of force” harshness that excessively progressive springs create.

This version of the Secus fits Fox 32, 34 & 36 mm stanchioned forks & Marzocchi Z1 2019+ forks (see Compatibility info).  Also available for RockShox & Fox 38/40 mm forks.
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Vorsprung Smashpot coil conversion system for Marzocchi Z1 forks
Fits 2019+ Marzocchi Z1 forks with M33x0.8mm top-caps
Includes adjustable hydraulic bottom-out system
Spring rates available from 30-80 lb/in
Will not fit E bike forks with smaller ID stanchions and caps
Requires strip down, tools and oil to install
Can be installed as part of any Shockcraft service (book here)

Ordered in from NZ supplier upon customer order.  Usually available approx 2 days lead-time.

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Replacement Smashpot foot stud assembly to fit Fox forks
Vorsprung Smashpot kits for RockShox, Fox, Öhlins & DVO use the same core assembly (inner & outer) with a different foot stud assembly & top cap
This foot stud assembly can be used to swap a Smashpot from a RockShox, Öhlins or DVO fork to a Fox fork
You will also need the Smashpot top cap for your specific Fox fork model (see related products) Learn More

Custom Hardware for fitting a Marzocchi Bomber CR Coil 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, modified Marzocchi Bomber CR 230 x 60 mm OR 230 x 65 mm coil shock and coil spring

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 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

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

Learn More