Bull Carbon BJ1385 Insane Air Jump Shaft – 13.85mm

Name: Bull Carbon BJ1385 Insane Air Jump Shaft - 13.85mm
Brand: Bull Carbon
SKU: BJ1385
Availability: InStock

$549.99

Bull Carbon BJ1385 Insane Air jump shaft, 13.85 mm, in carbon fiber. It is classed for jump and break use and belongs to the Bull Carbon family built on the V-TEK interchangeable Uni-Loc joint, Kamui tips and a stackable weight bolt system. You get one shaft to carry for jump shots and the occasional break, fitted to a compatible Bull Carbon butt rather than a whole new cue.

SKU: BJ1385 Categories: Break Shafts, Bull Carbon, Carbon Fiber, Shafts Brand: Bull Carbon

The Bull Carbon BJ1385 Insane Air Jump Shaft - 13.85mm is a Bull Carbon carbon fiber pool cue shaft sold by Quarter King Billiards. It has a 13.85mm tip. It is in stock at $550, with free shipping over $98 and 30-day returns.

Description

The Bull Carbon BJ1385, called Insane Air, is a carbon fiber jump shaft with a 13.85 mm diameter. It is classed for both jump and break use, so one shaft can handle getting over a ball and opening the rack. It suits players who like the carbon fiber approach Bull Carbon takes with its playing cues and want the same material in their jump game.

This shaft comes out of the Bull Carbon line, where performance cues are built around carbon-fiber shafts and the V-TEK interchangeable Uni-Loc joint, with Kamui tips and a stackable weight bolt system. The 13.85 mm diameter is the one size listed, which makes it simple to compare against any jump gear you already own. Confirm the joint system on your butt first.

Insane Air is a shaft-only listing and no colour is specified, which keeps the decision practical: check the joint, check the diameter, and add it to the setup you already play. For anyone who wants a carbon fiber pool cue shaft built for jumping, it is an easy addition.

Additional information

Brand
Shaft Size	13.85mm
Cue Type	Break, Jump
Shaft Type	Carbon Fiber

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Weight & Balance

This model takes a weight-bolt system, so the weight and balance point can be tuned after purchase. Adding weight toward the butt moves the balance rearward for a more planted feel; less weight shifts it forward for a livelier stroke. The balance point on a finished cue usually sits about 18 to 19 inches from the butt.

Specifications

Specifications for Bull Carbon BJ1385 Insane Air Jump Shaft - 13.85mm
Shaft Size	13.85mm
Cue Type	Break, Jump
Shaft Type	Carbon Fiber
SKU	BJ1385

Questions about this cue

What shaft diameter is the Bull Carbon BJ1385 Insane Air Jump Shaft - 13.85mm?

This cue ships with a 13.85mm shaft. Thinner shafts put more spin on the cue ball and feel crisper through the stroke; larger diameters feel fuller and are more forgiving on off-centre hits. Neither is better — it comes down to how you like the cue to hit.

Is this a carbon fiber or wood shaft cue?

The Bull Carbon BJ1385 Insane Air Jump Shaft - 13.85mm comes with a Carbon Fiber shaft. Carbon fiber will not warp, ignores humidity and deflects less; quality maple gives the traditional feel a lot of players still prefer. Both play at a high level, so pick the one that matches how you want the cue to feel.

What is the Bull Carbon BJ1385 Insane Air Jump Shaft - 13.85mm built for?

It is set up as a break, jump cue. Playing cues are balanced for control on shot-making, break cues are heavier with a harder tip for power transfer, and jump cues are short and light to get the cue ball airborne. Using the right one also protects your playing cue from break wear.

Is Quarter King an authorized Bull Carbon dealer?

Yes. We are an authorized Bull Carbon dealer, so this cue is genuine and carries the full manufacturer warranty against warpage and defects in workmanship. Warranty claims go through us — you do not have to deal with the factory yourself.

How fast does it ship, and can I return it?

Shipping is free on orders over $98 in the contiguous US, $5.50 flat otherwise, and you get tracking as soon as it moves. Returns are accepted within 30 days of delivery on unchalked, unused product — contact us first for a return authorization so it is credited without delay.

Specs checked and written up by Quarter King Billiards. Last reviewed October 12, 2026. Ask us about this cue