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Description
quad monsters SE Monster Quad 29" BMX Bike-High Polish Silver – J&R Bicycles, IncThe ultimate definition of BMX Innovations, this year we introduce the worlds first 29+ BMX bike, the Monster Quad! Built around huge 29 x 2. 8 Vee Speedster tires, this Monster is the biggest BMX bike on the planet. The unique Monster Quad frame design features an oversized downtube, integrated head tube, super stiff BB yoke, and a legendary looptail rear end. The front and rear Avid BB5 disc brakes and 2 piece alloy cranks really put this bike over
The ultimate definition of BMX Innovations, this year we introduce the world’s first 29+ BMX bike, the Monster Quad! Built around huge 29” x 2.8” Vee Speedster tires, this Monster is the biggest BMX bike on the planet. The unique Monster Quad frame design features an oversized downtube, integrated head tube, super stiff BB yoke, and a legendary looptail rear end. The front and rear Avid BB5 disc brakes and 2-piece alloy cranks really put this bike over the top. Watch out now, it’s a MONSTER!
KEY FEATURES
- 6061 Aluminum Monster Quad frame with oversized downtube, integrated head tube and looptail rear end
- Full Cr-Mo Landing Gear forks
- SE Racing forged alloy 2-piece cranks with 24mm hollow alloy spindle, external sealed bearing bottom bracket and alloy chainring
- Vee Tire Co x SE Racing Speedster 29" x 2.8" tires
- Avid BB5 disc brakes with Tri-Align caliper positioning system, 160mm rear rotor, 180mm front rotor
- Authentic ODI Mushroom II grips with donuts
- Monster Flyer seat with bottle opener
- 33.6 pounds
SPECIFICATIONS
- COLOR(S): High Polish Silver
- FRAME: 6061 Aluminum, Single Downtube Monster Quad Design, Internally-machined Integrated Head Tube, Looptail Rear End, Retro Dropouts, 73mm Euro Bottom Bracket, 142mm Spaced Dropouts, Disc Brake Tabs
- FORK: Landing Gear, Full Cr-Mo, Disc Tabs, 445mm Axle to Crown, 39mm Offset, 110mm Spaced Dropouts
- CRANKSET: SE Racing 175mm Forged Alloy 2-pc Cranks, External Sealed Euro Bottom Bracket, 24mm Hollow Alloy Spindle, 39T Alloy Chainring,
- PEDALS: X-Pedo Low-profile Platform w/ Removable Pins
- CHAIN: KMC S1
- WHEELSET: Alloy 36H Nutted Hubs, Sealed Rear, 110mm Front Hub & 142mm Rear Hub, w/ 42mm Double-Wall Disc Rims, 20T Cassette, Stainless Spokes
- TIRES: Vee Tire Co x SE Racing Speedster, 29" x 2.8" Front & Rear
- BRAKESET: Avid BB5, Mechanical Disc, Easy to Adjust w/ Tri-Align Caliper Positioning System, 180mm Front Rotor, 160mm Rear Rotor
- BRAKE LEVERS: Tektro MT2.1, 2-Finger Alloy, Front & Rear
- HEADSET: FSA Orbit CE, Sealed 1-1/8" Integrated
- HANDLEBAR: Big Honkin' Cr-Mo Cruiser Bar, 29" x 6", 10° Backsweep, 1° Upsweep
- STEM: Retro Alloy Top-Load w/ Engraved SE Logo & Lightweight Cutouts, 55mm Reach
- GRIPS: Special Edition ODI Mushroom II Dual-Ply Grips, Made in USA, w/ SE Donuts,
- SEAT: Monster Flyer Seat w/ Custom SE Bottle Opener Brace
- SEATPOST: Micro-Adjust Alloy, 27.2mm
- SEAT CLAMP: Alloy, 31.8mm Inner Diameter
- ACCESSORIES: Alloy Valve Caps, SE Chain Tensioners
- WEIGHT: 33.6 lbs / 15.24 kgs
GEOMETRY
- TOP TUBE, ACTUAL: 23.5"
- SEAT TUBE, CENTER TO TOP: 16.9"
- SEAT TUBE ANGLE: 71°
- HEAD TUBE ANGLE: 71°
- CHAINSTAY LENGTH: 18.3"
- WHEELBASE: 43.9"
- BOTTOM BRACKET HEIGHT: 13"
- STANDOVER: 30.5"
- SUGGESTED RIDER SIZE: 5'5"+ (165cm+)
- STEM: 55mm
- HANDLEBAR WIDTH: 29"
- CRANK: 175mm
- WHEEL SIZE: 29"
- SEAT POST DIAMETER: 27.2mm
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
4.3 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
So far so good
It seems to be working well, so far. The check engine light turned off and the my vehicle seems to be running well. Be sure to follow the instructions. A while back, I wasted some money on a different catalytic converter cleaner because I put the cleaner in on a full tank of gas. It's best to wait until you're at a half tank or less of gasoline before you put in your catalytic converter cleaner. Also, I drove around right after I put in the catalytic converter cleaner and before I filled up my tank again. A couple of days later, I went to the gas station and topped off my tank. Again, it seems to be running well for now.
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Reviewed in the United States on April 21, 2026
★★★★★ 4
Works ok for some stuff.
I tried this mainly to clean my cats. It sadly didn't work for that at all.
It did however work great as a basic fuel system cleaner. It smoothed out my idle and cleaned my O2 sensors they were a bit lazy before using this product now they switch fast like they are supposed too.
In terms of my recommendation I say use as a fuel system cleaner. Or if your cats aren't too clogged in my case I bought an old neglected used car that likely had that problem for years. So I don't think any pour in tank cleaner would work in my case.
However if your car just started having cat issues. This might work??
I think it's worth a try at least and isn't much more expensive than a basic fuel system cleaner so why not?
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Reviewed in the United States on May 16, 2026
★★★★★ 5
PASSED MY INSPECTION! THIS PRODUCT WORKS LIKE A MIRACLE DONT HESITATE TO BUY IT!
Inspection on my car due the end of January! My check engine light was coming on so I checked with a code reader & found it was a P0420. Read about the Catalytic Converter System possibly being in need of replacement or perhaps clogged. I am a woman, and know next to ZERO about cars, but I can read. Did investigate and found that the replacement of a Catalytic Converter system is mad expensive- also found this Moly Cleaner to add to gas tank. I'm not going to lie; I was nervous as I have a Kia Rio 2014 that has a very small gas tank and gets great gas mileage. In reading the consensus seemed to be to add to 1/4 tank of gas and drive fast for good periods of time to blow out the clog (if it was a clog). Did I mention I live in NYC and driving for long periods of time at high speeds can be a problem because of terrible traffic. Anyhow, this Saturday I poured the can into my 1/2 filled tank and hit a parkway near my home early morning. I did drive for 45 miles sometimes at 80mph then 60mph but tried to do it for a good few minutes at a time without getting pulled over. Checked my reader again, and it was not quite ready but the engine light did stay off. Next day, drove to work, stuck in traffic somewhat & never made it over 20mph & checked my reader again- all good to go for inspection. Went last night- my car PASSED and got that sticker in my window- so I am good for another year. The BEST money I have spent all year. Thank you for carrying this product! Saved me thousands! DONT HESITATE TO USE THIS. The hardest part for me was removing the cap on the can!
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Reviewed in the United States on January 13, 2026
★★★★★ 5
Great stuff
Seemed to work as well as or better than some more expensive catalytic converter cleaners. I put it in while at 1/3 tank and my Check Engine light went out almost immediately once I started driving. My Tundra has almost 230,000 miles and still runs great but was getting a little harder to start after I switched from full synthetic oil to conventional. I’ll never do that again and immediately switched back but the damage was done. Check engine light came on and I had to crank longer to get it started. Adding this Liquid Moly fixed both issues temporarily. I have to wonder if this was used regularly, say every 3 months, if it would clean the catalytic converter more permanently?
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Reviewed in the United States on December 29, 2025
★★★★★ 3
Ehh??
Didn't work for my on my 17 hyundai accent with 90k on it.
I poured the whole bottle in with a half tank of gas. And went for a 3 day italian tune up.... no dice.
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Reviewed in the United States on May 8, 2026