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Description
Boom Racing ProBuild™ 1.9" LGB Adjustable Offset Aluminum Beadlock Wheels (2) Matte Black/OrangePRODUCT RESOURCES Installation Manual ProBuild 19 Beadlock Wheels V1_4_1649317611_1662624285_1667896899. pdf 1. 83 MB TAGGED CATEGORIES: 1. 9 Beadlock Wheels probuild PRODUCT INFORMATION: Watch a video introduction about this product This is ProBuild 1. 9" LGB Adjustable Offset Aluminum Beadlock Wheels (2). The Boom Racing ProBuild wheels use a patented design for quick and easy installation and setup. Wheel Combination: Size: 1. 9" Width: Standard
PRODUCT RESOURCES
TAGGED CATEGORIES:
PRODUCT INFORMATION:
- Watch a video introduction about this product
-
This is ProBuild 1.9" LGB Adjustable Offset Aluminum Beadlock Wheels (2). The Boom Racing ProBuild wheels use a patented design for quick and easy installation and setup.
Wheel Combination:
- Size: 1.9"
- Width: Standard
- Barrel Color: Matte Black
- Barrel Material: Aluminum
- Center Ring Material: Aluminum
- Faceplate Style: LGB
- Faceplate Color: Orange
- Faceplate Material: Aluminum
- Outer hardware: Scale Hex (Black) + Cap Head 12.9
- Bolt Pattern: 5-Lug
- Center Cap: S100 Black #BRW780923
- Hub Size: XT504 (4mm Offset)
- Hub Hardware: Black
- Lock Ring: Black
Build your wheels exactly the way you want with Boom Racing's all-new ProBuild Wheels.
The idea behind PROBUILD was to find a way to make a fully customizable and adjustable wheel with multiple setup options. Today, that sounds really smart, but back when we started most people thought we were crazy. That’s alright, everything has its time!
Quality off-road wheels are not always affordable. Most of us save our money to get a nice set. Deciding on the right set of wheels can end up being a scary and expensive learning lesson. Our proprietary customizable design completely removes any fear of getting another set of wheels that are “almost right”. We took into consideration all of the desirable wheel features - style, color, offset, material, total width, weight, hub size, hardware styling, etc., and provide the options to adjust the wheel to the way you like.
What makes PROBUILD probuild?- High changeability, unlimited possibilities
- Built-in offset options
- Revolutionary and cutting edge designs
- Engineered to the exact specifications of world-class drivers
With unlimited combinations of colors, faceplates, multiple offset options, etc, ProBuild wheels is a game-changing design for how we build and match custom rigs. No longer are we stuck with a full set of wheels that remain the same for too long.
Specification:- Diameter: 1.9"
- Width: 29.4mm (1.157")
- Inner Wheel Clearance: 45mm (1.771")
- Weight:
- Alum Center Ring: 18g
- Barrel: 30g (front & rear)
- 74g per wheel (fully assembled)
- 61g per wheel (without hub and hardware)
What's Included?- 2x Alum 7.5mm Barrel
- 2x Alum 15mm Barrel
- 2x Alum 21.5mm Beadlock Center Ring
- 2x Aluminum Faceplate
- 2x Steel Lock Ring #BRPROB-05
- 2x S100 Scale Center Cap Black #BRW780923
- 2x XT504 Alum Wheel Hub Adapter #BRXT504
- 40x M2x9 Scale Hardware #BRPROB-06
- 40x M2x8 12.9 Grade Socket Cap Screw for wheel #BRPROB-07BK
- 10x M2x10 12.9 Grade Socket Cap Screw for hub #BRASCH2010
- 6x M2x14 12.9 Grade Socket Cap Pilot Screw
- 2x M4 Nyloc Nut
- 1x 7mm Nut Driver Adapter #BRT10045
- 1x 2mm Scale Socket Driver #BRT10049
- 1x Decal Sheet
Fits:
- 1.9" Crawler Tires
- Clears TRX4 and SCX10.3 portal axles
- Wheel shafts using M4 wheel nuts (XT5 V2 hub fits M4 nut. XT6 V2 hub fits M4 and M5 nuts)
Optional Wheel Hubs:- XT500 - 0mm Pin Alum Offset #BRXT500
- XT504V2 - 4mm Alum Offset #BRXT504V2 (Included)
- XT508 - 8mm Alum Offset #BRXT508
- XT512 - 12mm Alum Offset #BRXT512
- XT516V2 16mm Alum Offset #BRXT516V2
- BRXT5DU Dually adapter #BRXT5DU *certain faceplates do not fit
Note: Optional Mag Seat Lug Nut M2x8mm will NOT fit the ProBuild LGB faceplate.
7mm Nut Driver Adapter #BRT10045
Have you ever had issues with nut drivers being too large? Since there are no industry standards for nut driver head sizes, a lot of wheels are designed with a bigger "hole in the middle" to fit the most common nut drivers out there.
When drawing up new designs we always aim for the best possible looking wheels. Minimizing the center area means there is more room to play with on the face design. This new 7mm Nut Driver Adapter has a smaller hex head diameter, which guarantees any hex nut driver to work with most likely any wheels out there, especially newer 1.9s and 1.55s.
We believe everyone in RC should have this in their toolboxes, and so for every pair of the upcoming ProBuild wheels, we are including one 7mm Nut Driver Adapter each, which means you will get two of them for every set of ProBuild wheels.
2mm Scale Socket Driver Tool #BRT10049
This new 2mm Scale Socket Driver Tool will be released with the upcoming ProBuild wheels. Every pack of ProBuild wheels will include one 2mm Scale Socket Driver Tool, which means you will get two of these when you get a full set of wheels.
An awesome handy tool to have in any toolbox. You can also hang this on a keyring for convenience.
Build your beadlock wheels exactly the way you want like a Pro! - Package total weight: 202.00 grams (incl. packaging)
- Package size: 9.00 x 17.00 x 4.00cm
- Factory description: Boom Racing ProBuild™ 1.9" LGB Adjustable Offset Aluminum Beadlock Wheels (2) Matte Black/Orange
- Manufactured by Boom Racing
- Manufacturer number: BRPB075MBKOR
- This item is eligible for in-store promotions
- Nobody beats our price! See our Best Price Guarantee, or your money back!
- Questions about this product? Ask Our Technical Support
- You may Request Additional Product Information for this product.
- Looking for screws / bolts to assemble this product? Email Us
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 21 reviews
Sort
Product Reviews
★★★★★ 5
Awesome speakers.
Size: Pair
Love Klipsh speakers. Beautiful, full, rich, clear sound. Combine with a sub for best sound. Very loud. Love these.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
★★★★★ 5
Love it
Size: Pair
These are nice for any audiophile. They look and sound amazing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
★★★★★ 5
Great Sound
Size: Pair
Great things sometimes come in little packages. Powerhouse sound with virtually no input at all. Tight, crisp, and well-made as usual from Klipsch. If you are looking for a powerhouse monitor these are what you want.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
★★★★★ 4
Great starter speakers - for the right price.
Size: Pair
A good all-around pair of starter speakers if you're planning on using them as standalones. These will have zero trouble filling a small to medium sized space with rich and detailed sound at low to mid volumes. The bass is adequate for their size. They're not going to knock your socks off on more thumpy genres. I would imagine pairing them with a subwoofer would make quite the difference but for rock and some synth pop, they're pretty sweet. Plus the copper woofers look very striking without the faceplates.
That said, I say these are best suited at low to mid volumes because cranked, the higher frequencies can be awfully fatiguing coming out of these speakers. I would not pay anywhere close to the $349 MSRP for these (you can probably find a pair of far superior RP-600Ms for around that price nowadays). Around $150 seems like a sweet spot for the R-51Ms, but the Sony SSCS5s and Fluance Signature bookshelfs are very comparable, if not better sounding for around the same price. Still, these will probably more than satisfactory if you're not expecting to be blown away by them.
UPDATE 5/20/25:
Can confirm that the subwoofer made a big difference. I was going to retire these since I replaced them with some bigger floor speakers on my main setup but I decided to try them out in place of the factory speakers on the Klipsch ProMedia 2.1 I have hooked up to my computer. Not only does the onboard amp seem to drive them okay at not-insane levels of volume - they sound really sweet paired with the 6.5-inch subwoofer. While I won't change my rating, I do highly recommend getting a sub along with these speakers.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2025
★★★★★ 5
Great speakers, rich full sound
Size: Pair
These are really great speakers. I got them to go with my husband's new record player for Christmas. These really sound fantastic. A rich range, with a nice bass that's not too much. They were easy to connect to the player. I like a rich sound better then bright (I think if it's too bright it doesn't have enough bass), and these definitely fit the bill. I got these on a black Friday deal which was even better. They are a good value for the quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 9, 2026
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