Heavy Duty · Astro-Physics Pier Mount
Save your back — roll your whole telescope outside in one trip.
The JMI Astro-Physics Pier Mount Wheeley Bar is the Astro-Physics–specialized member of the heavy-duty Universal family. It’s built on the same footprint as our HD Medium Wheeley Bar, but with custom legs sized to carry Astro-Physics pier mounts. Move a fully assembled pier-mounted telescope from storage to your observing spot — no disconnecting mount cables, cameras, or power between sessions. Lock the wheels, level the base on its built-in leveling bolts, and start observing. Built on a sturdy welded-steel frame by JMI (part of the CXB Astro family) and made in the USA.
Rated to 300 lb, the AP Pier Mount Wheeley Bar carries the full Astro-Physics pier range. Because a loaded pier sits with a higher center of gravity on this footprint, your mount must be strapped down — see the safety note below.
Specifications
Maximum load
300 lb total — pier, mount, OTA, and all accessories combined
Fits
Astro-Physics 6″, 8″ & 10″ pier mounts (AP 400 / 600 / 800 / 900 / 1200)
Footprint
Same as the HD Medium Wheeley Bar, with heavier-duty construction
Standard package
5″ polyurethane wheels + 5/8″ heavy-duty leveling screws
Construction
Welded steel, locking wheels, leveling bolts. Made in USA.
Best for
Astro-Physics pier-mount owners who want one-trip mobility
Built for Astro-Physics Pier Mounts
This Wheeley Bar uses Astro-Physics–specific legs in place of the standard tripod receptacles, so it cradles an AP pier directly. It is compatible with:
- Astro-Physics 6″ Pier Mount
- Astro-Physics 8″ Pier Mount
- Astro-Physics 10″ Pier Mount
That covers the Astro-Physics 400, 600, 800, 900, and 1200 mounts. Using a standard tripod instead of an AP pier? See the full Wheeley Bar range for the tripod models.
Important — strap your mount down. Because the AP pier sits with a higher center of gravity on the HD Medium footprint, there is a greater risk of tipping. Your mount must be secured to the Wheeley Bar with a Tie-Down Bracket Kit — especially when moving over uneven ground. As with all Wheeley Bars, JMI is not responsible for equipment that tips over.
Configure & Upgrade Your Wheeley Bar
The AP Pier Mount Wheeley Bar ships ready to roll on hard, flat surfaces with 5″ wheels and heavy-duty 5/8″ leveling screws. Add the upgrades that match where and how you observe — all available in our Wheeley Bar Accessories collection:
5″ Wheels — Standard
Ships standard. Smooth, stable ride on concrete, sidewalks, and other hard surfaces.
10″ Pneumatic Tires + Tow Handle
All-terrain upgrade for grass, dirt, and gravel. Raises the setup ~3.5″.
Tie-Down Bracket Kit
Secures and stabilizes your mount — strongly recommended here for the AP pier’s higher center of gravity.
Made in the USA
Every JMI Wheeley Bar is welded, assembled, and tested in the USA — click to watch how they’re built (the video also plays in the product gallery above).
Frequently Asked Questions
Which Astro-Physics mounts does this fit?
The AP Pier Mount Wheeley Bar is designed for Astro-Physics 6″, 8″, and 10″ pier mounts, covering the Astro-Physics 400, 600, 800, 900, and 1200 mounts. Its legs are AP-specific, so it cradles the pier directly rather than using standard tripod-tip receptacles.
Do I need to strap my mount down?
Yes. The AP pier sits with a higher center of gravity on the same footprint as the HD Medium Wheeley Bar, which increases the risk of tipping. Secure your mount to the Wheeley Bar with a Tie-Down Bracket Kit, especially when moving over uneven ground. JMI is not responsible for equipment that tips over.
Which wheels should I choose?
The standard 5″ polyurethane wheels are ideal for concrete, sidewalks, and other hard surfaces. For grass, dirt, or gravel, upgrade to the 10″ all-terrain pneumatic tires — take care on soft or wet ground, where the tires can sink in. With a very heavy pier-mounted rig, avoid rough or wet surfaces under adverse conditions.
Will it fit through my doorway?
The AP Pier Mount shares the HD Medium footprint, which is adjustable. Typical width runs about 33″–40″ at the normal setting, down to roughly 29″–34″ at its narrowest (turned and maneuvered), and up to about 38″–47″ at its widest. If you add the 10″ large-wheel upgrade, your doorway must be at least 3″ wider than the measured width.
Not sure which Wheeley Bar is right for you?
Compare every model and walk through the full sizing guide.
See the full guide Shop all Wheeley Bars
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