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USA
- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
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Description
Castrol Grand Prix Motorcycle Oil, 4-StrokeCastrol Go! 4T is a high quality, mineral based motorcycle oil designed for 4 stroke engines. Developed with Castrols expertise in motorcycle lubricant technology, it contains Castrols TRIZONE Technology for a trouble free ride time after time. Castrol Grand Prix 4 Stroke Motorcycle Oil features TRIZONE Technology protects the engine, clutch and gearbox and allows the best functionality of these three critical areas of your motorcycle. Provide maximum
Castrol® Go!® 4T is a high quality, mineral based motorcycle oil designed for 4-stroke engines. Developed with Castrol’s expertise in motorcycle lubricant technology, it contains Castrol’s TRIZONE Technology™ for a trouble free ride time after time.- Castrol Grand Prix 4-Stroke Motorcycle Oil features TRIZONE Technology™ protects the engine, clutch and gearbox and allows the best functionality of these three critical areas of your motorcycle.
- Provide maximum protection against viscosity and thermal breakdown
- Delivers superior engine wear protection and high film strength for high revving motorcycle engines
- Specialized additives help prevent against ring sticking and build-up of harmful deposits
- API SG, JASO MA-2
- Available grades: 10W40, 20W50
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
4.4 ★★★★★
Based on 1447 reviews
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Product Reviews
★★★★★ 5
For the Back Pocket Carrier out there....
Material Type: Leather, Color: Forest Brown-4337
I think this wallet is awesome! I've been carrying for about a week and it is working out great. I usually don't carry cash but for the last week, I've actually had a little cash on me. Instead of using the clip on the back (that clip is pretty tight and I don't like the look of having cash there), I just put is under the ID flap and the magnetic closure holds it in place. I love the color, the trigger works great, and the cards are held securely even when it isn't completely full. I also like the size. It requires me to carry less, which is something I need. (I realized two weeks ago that I had been carrying an old debit card in my old wallet around that had expired in 2023 and it turned out that I didn't have an account at that bank! hahahahahaha. I must be getting old.).
This is important to me: I carry a wallet in my back pocket. I always have and that is what is comfortable to me. Front pocket carry feels weird to me. I've been carrying this wallet in my back pocket and sitting on it with no issues. I'm a big guy (300 lbs) and, so far, it's held up great. In all honesty, I do take it out of my pocket and put it in my console when I drive, but that's it. Everywhere else I go, and sit, it stays in my back pocket. I know it's only been a week, but I'm glad to see that I haven't crushed it, or deformed it, or anything.
Ultimately, it's been great and I'm glad I got this one.
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Reviewed in the United States on May 9, 2026
★★★★★ 5
Best Wallet I’ve Owned – BULLIANT Magnetic Metal Wallet Is a Winner After a Few Months
Material Type: Leather, Color: Tiger Eye-4339
I’ve been carrying the BULLIANT Men’s Magnetic Metal Wallet every day for a few months now, and it’s easily the best wallet I’ve ever owned. It combines a sturdy metal frame with a full-grain leather flip cover and a strong magnetic closure that keeps everything secure and tidy. The RFID blocking works great, and the overall build feels premium without the crazy price tag of some big-name minimalist wallets.
What I love most is the functionality and everyday practicality. It holds my cards securely, the magnetic flip makes accessing them quick and easy, and the design keeps things organized without too much bulk. Cash storage is straightforward, and it just feels solid in the pocket. After a few months of daily use, it still looks and works like new—no loose parts or wear that bothers me.
If you’re chasing the absolute slimmest possible profile, this might not be the one for you — it’s not quite as ultra-thin as a Ridge wallet. But for me, that extra bit of comfort and capacity makes it perfect. It strikes a great balance between minimalist design and real-world usability. I don’t feel like I’m sacrificing too much slimness, and the added features (like the magnetic closure and leather accents) make it more enjoyable to use day-to-day.
If you want a durable, well-designed metal wallet that feels high-quality and performs better than cheaper alternatives, this BULLIANT model is absolutely worth it. Highly recommend!
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Reviewed in the United States on April 16, 2026
★★★★★ 5
Quality, value, durability and a company that stands behind their products
Material Type: Leather, Color: Tiger Eye-4339, Material Type: Leather, Color: Tiger Eye-4339
Quality seems very good. Compact holds everything i need. A little pricey for a wallet. We'll see how long it holds up
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Reviewed in the United States on May 30, 2026
★★★★★ 5
Feel secure with your cards and money!
Material Type: Carbon Fiber Leather, Color: Black-3926
This is a cool wallet. My previous wallet didn't protect my cards and as a result they would get damaged. This wallet is like bullet proof and fits all of my id and credit cards perfectly. I really like the magnetic fold which is very secure, but the most comforting thing about this design is that my cards cannot be scanned. Very secure. Highly recommend Bulliant wallets!
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Reviewed in the United States on March 30, 2026
★★★★★ 4
Great product
Material Type: Carbon Fiber Leather, Color: Black-3926
Very strong and reliable can't carry much cash but it is very handy
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Reviewed in the United States on March 16, 2026
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