X-Wheel Crazy Jack 30 SLS4 Zoom

X-Wheel Crazy Jack 30 SLS4

Use: XC, Marathon, Down Country e All Mountain

Hubs: Carbon-Ti X-Hub SP 28/28 holes (International Standard 6-hole disc mount)
Hub Color: Matte Black (Gloss Black, Red, Blue, Gold, Silver or Green on request)
Freewheel type: 4 three-pointed pawls with simultaneous action, titanium toothed ring, 56 points of engagement
Front hub bearings: 2x SKF high quality bearings (CeramicSpeed ​​ceramic bearings available on request)
Rear hub bearings: 4x SKF high quality bearings (CeramicSpeed ​​ceramic bearings available on request)
Hub Front axle: 15x110 mm (Boost) thru axle (Lefty 2.0 o RS-1 on request)
Hub Rear axle: 12x148 mm (Boost) thru axle
Freewheel compatibility: SRAM XD (12-11s), Shimano Micro Spline (12s), Shimano HG (11-10s)
Brake type: for disc brakes only

Rims: Duke Crazy Jack 30 SLS4
Rims type: Carbon Fiber, Hookless
Rims finish: UD Paintless (no paint, shiny look)
Rim profile: 22 mm
Inner rim channel width: 30 mm
Outer rim width: 36,5 mm
Rim profile: asymmetrical (3 mm offset)

Spokes: 28/28 Sapim CX Ray with aluminum nipples
Color of the spokes and nipples: black

Recommended tire sizes: 53 mm (2,10") to 71 mm (2,80")
Decal kits colours (optional): black, silver, white, mirror gloss (chrome), gold, red, blue
Maximum total weight allowed (rider + bike + equipment): 120 kg
Wheels supplied without tape and valves. Recommended tape width 32 mm

Wheel weight (lightest version hubs, without decals, tape and valves): 1330 grams +/- 30 grams
WEIGHT: 1330g

Availability: In stock

  Incl. 22% VAT

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Carbon-Ti is pleased to announce the birth of a new major collaboration with the French company Duke Racing Wheels by Philippe Jacquinet.

Duke Racing Wheels produces high-tech carbon fiber rims, and supply them to multi-titled professional teams for years.

The collaboration foresees the furnishing of the latest generation of MTB, Road, and Gravel wheels to offer a complete range of Carbon-Ti wheels.

We entrusted Pippowheels, the leading company in this sector, that is making available experience, expertise, and equipment for the realization of high-quality wheels.



Sapim CX-Ray rays have been chosen for all the fittings to guarantee maximum performance, and for the ease of finding spare parts.

We will supply the wheels with the latest 100% made-in-Italy Carbon-Ti Straight Pull hubs.

The new version includes mechanical parts subjected to a special surface hardening treatment.

The mechanics boast SKF-sealed bearings of the highest quality and a preload adjustment that ensures an always optimal setup. Demanding customers who don't want to compromise can opt for the special Ceramic Speed option on any wheel.

Mtb wheels are fitted out as standard with six holes disk attack matte blacks hubs. Nevertheless, it is possible to have on request different anodized colors for them. Warning: These options may require longer waiting times. The customization of the wheels is completed by choosing the colored decals applied to the rims.


Decal kits colours (optional): black, silver, white, mirror gloss (chrome), gold, red, blue







The X-Wheel Crazy Jack 30 SLS4 with a 30 mm channel have been designed for more heavy-duty use and can be employed on Down Country and All Mountain bikes while maintaining a weight of all respect (1330 grams).







Two-year warranty for material or manufacturing defects Lifetime crash replacement * with guaranteed replacement price following impacts or accidents

Lifetime crash replacement

We offer a crash replacement program. Accidents, falls or violent impacts can damage the rim and make it impossible to use.

The crash replacement program offers a service that allows you to replace the rim at special conditions.

For example, 350 euros excluding VAT for the replacement and reassembly of any carbon rim, excluding transport costs. Shipping costs will be charged to the customer.

This offer is valid for an unlimited period of time for the carbon rims in the 2023 range and is transferable if the wheels are sold to a third party.