RAM Quick-Grip XL Phone Mount with Short Arm and U-Bolt Base
The XL version of RAM's Quick-Grip kit for today's larger phones: a spring-loaded holder sized for bigger handsets, a short B-size double socket arm, and a zinc-coated U-bolt base that clamps handlebars and rails from 1/2" to 1 1/4" in diameter -- everything included in one box.
Why this matters on two wheels
Modern phones keep getting taller and wider, and a holder sized for a regular phone will not open far enough for a large handset in a case. This XL holder's side supports extend further specifically for that, so a big phone still gets a secure, snug grip rather than sitting loose and bouncing under engine vibration. Worth knowing before long rides: RAM's own documentation notes that sustained handlebar vibration from a high-powered motorcycle engine can affect phone cameras over time -- a characteristic of phone hardware, not something any mount can fully prevent.
Features
- Spring-loaded holder with adjustable side supports gives a secure fit for a variety of large phones and other devices; insert or remove your phone with one hand
- Includes a U-bolt base for rails .5"-1.25" in diameter and a short-length B-size RAM double socket arm; ball-and-socket design gives near-infinite adjustability
- Made of powder-coated marine-grade aluminum and high-strength composite for durability in demanding environments
- Backed by a lifetime warranty
How RAM's modular system works
Every RAM mount is built from up to three parts that click together: a base that clamps, bolts, or straps onto the vehicle (a handlebar, a rail, a dash, or a device's own housing); an arm that connects two RAM balls together and can be locked at any angle, so once mounted you can tilt, rotate, and reposition the device freely and then lock it firmly in place by hand; and a cradle or holder that grips the specific device (phone, tablet, GPS unit, camera).
Not every product includes all three parts -- some are just the base, some bundle a cradle, some are a complete kit. Where that is the case, this page says so plainly, so you know exactly what you are getting and what, if anything, you would need to add.
The ball size determines what it can carry
RAM uses five ball sizes, each rated for a different weight and duty class. B Size (part numbers starting RAM-B-...) is RAM's most common size, standard duty -- what RAM recommends for phones, GPS units, and light tablets in normal use. C Size (plain RAM-... part numbers, no letter prefix) is heavy duty -- used for larger tablets, handheld computers, CB radios, and anything mounted somewhere that gets a lot of vibration or shock, exactly the case on a motorcycle, ATV, or UTV. D and E Size are reserved for large monitors and specialist equipment, rarely needed outside those cases.
Rule of thumb: if the mount will live somewhere that is frequently jostled, vibrated, or under constant load -- a motorcycle or off-road vehicle -- RAM recommends stepping up to the larger ball size (C or D) for extra stability, even if a lighter B-Size mount would technically hold the device's weight.
No tools required, on purpose
RAM arms are designed to be tightened by hand only -- there is no official torque spec, because the ball-and-socket joint is meant to be adjustable in the field without a wrench. If hand-tightening does not hold your device firmly, that is usually a sign the ball size is undersized for the device -- sizing up solves it, rather than over-tightening.
Aluminum or composite -- both built for the outdoors
RAM mounts are made from marine-grade aluminum or high-strength composite, depending on the product; both carry a lifetime warranty and similar weight ratings. Aluminum's powder-coat finish handles rough vibration and shock slightly better; composite has no paint to chip and is often preferred in high-corrosion or salt-air environments. Neither choice is worse -- it is a trade-off between finish and environment.
What's in the box
Unlike a base-only product, this is a complete mount: the U-bolt base, the short B-size double socket arm, and the XL Quick-Grip holder are all included and ready to assemble -- no extra RAM parts to buy separately.
Specifications
| Clamp range | 0.5" - 1.25" diameter (12.7 - 31.8 mm) |
| Holder height range | 5.75" - 7.25" (146 - 184 mm) |
| Holder width range | 2.625" - 3.625" (67 - 92 mm) |
| Holder max depth | 0.72" (18 mm) |
| Ball size | B Size (1") |
| Socket-to-socket arm length | 1.75" |
| Weight capacity, standard use | 2 lbs (approx. 0.9 kg) |
| Weight capacity, heavy-duty use | 1 lb (approx. 0.45 kg) |
| Materials | Marine-grade aluminum and high-strength composite |
| Hardware included | U-bolts for .5"-1" and 1"-1.25" rails, 2x nylon-insert lock nuts, 2x rubber caps, U-bolt spacer |
| Packaging | Poly bag |
| Weight | 0.84 lb (approx. 0.38 kg) |
Frequently asked questions
What size phones fit in the XL holder?
Devices between 2.625" and 3.625" wide, up to .72" deep, and 5.75"-7.25" tall with the spring-loaded side supports extended -- sized for today's larger phones, including many in a protective case.
How is this different from the regular (non-XL) Quick-Grip mount?
Only the holder size. The XL version (this product) opens wider and taller for large phones; the regular RAM-B-149Z-A-PD3U is sized for smaller, regular phones. Both use the same short B-size arm and U-bolt base.
What handlebar sizes does the U-bolt base fit?
Rails from .5" to 1.25" (12.7-31.8 mm) in diameter; a spacer is included for a tight fit without scratching the bar.
Can I insert or remove my phone with one hand?
Yes -- the spring-loaded side supports flex open so you can insert or remove the phone one-handed. Always do this with the vehicle stopped, not while riding.
Does long-term vibration on a motorcycle affect my phone?
RAM notes that sustained vibration from a high-powered motorcycle engine can affect phone cameras over time; this is a characteristic of phone hardware, not something the mount itself can prevent.
Is there a warranty?
Yes, lifetime warranty against manufacturing defects.