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Description
OS Speed B21 3.49cc Off-road Racing Engine Exhaust Pipe SetOS Speed B21 Level 21 3. 49cc Off road Racing Engine Exhaust Pipe Set ADAM DRAKE Edition Features: . Description: Adam Drake is a world class professional racing driver at the ROAR national championship, one of the best cross country RACES in the United States. At the age of eight, he started playing RC suvs in the backyard, and at 14, he started racing cars in earnest. He won the 1 8 ROAR Nitro suv title in 2013 and has five ROAR titles to date. Many
OS Speed B21 Level 21 3.49cc Off-road Racing Engine Exhaust Pipe Set - ADAM DRAKE EditionFeatures:
.Description: Adam Drake is a world-class professional racing driver at the ROAR national championship, one of the best cross-country RACES in the United States. At the age of eight, he started playing RC suvs in the backyard, and at 14, he started racing cars in earnest. He won the 1/8 ROAR Nitro suv title in 2013 and has five ROAR titles to date. Many of his followers around the world supported him on Facebook and Twitter. The o.s. simed B21 ADAM DRAKE Edition, based on his recommendation, redesigned the crankshaft with a stroke change to 16.55mm based on the o.s.simed B2101. Two tungsten hammer specifications have been changed to improve the driving feel. By adjusting the timing of the newly designed cylinder jacket, the special φ6.5 anodized carburetor reducer for off-road racing and the special φ8 anodized carburetor reducer for off-road racing were installed, and the engine was completed to win the large race that met his requirements. An exhaust system with a t-2090sc tuned silencer and an M2004SC (85mm) manifold are also provided
.Features：Designed according to Adam Drake's advice and taste.The engine can be used in both buggy and truck. New design cylinder liner with new porting.New design DLC crankshaft with double tungsten counter weight.New bore x stroke(16.40x16.55mm).carburetor reducers are 6.5mm and 8.0mm.ceramic rear bearing.21J carburetor, the same as OS SPEED spec 2 and spec 3.OS SPEED P3 GOLD plug for better fuel mileage
.Specifications: Displacement: 0.213 cu in (3.49 cc); Bore x Stroke(16.40mm x 16.55mm); Practical rpm: 4,000-42,000rpm; Power Output: 2.65 ps/2.61 hp/34,000rpm; Weight: 353g/12.45oz
.Safety Instruction: The engine is not a toy! Please read the instruction manual to become familiar with the features of the product before operating. Keep yourself and those around you safe. To maintain the best engine performance and longer service life. Incorrect or faulty maintenance can result in damage to the product.
.For Ages: 14+
Specifications:
.Color: As Shown
.Material: Metal
.Product Weight: 353g
.Package Dimensions: 18 x 12 x 10cm
.Package Weight: 500g
.Packing: Box
Package Content:
.1 x Engine + Exhaust Pipe Set
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★★★★★ 5
I have not gotten any leg cramps since taking this
Healthy minerals help bone maintensnce
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Reviewed in the United States on January 25, 2026
★★★★★ 5
Great product
Great product
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Reviewed in the United States on September 20, 2025
★★★★★ 5
Five Stars
Satisfied.
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Reviewed in the United States on May 5, 2015
★★★★★ 5
Of course, yes!
Size: 40 Count (Pack of 1)
I absolutely love this product! My dry mouth is terrible with the medicines that I have to take and just being able to stick this on the side of my dumb and let it freely release during the day is fantastic! Why have I never heard of these wonderful little things. Perfect when you want don’t wanna wake up with bad breath these are mintier than most of the other kinds, I have tried. I wish they had xylitol in them because then they would even be great for your teeth.
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Great Mint Flavor, better mouth profile
Size: 60 Count (Pack of 1)
Unlike others, I prefer these to the Zylimelts. I like the fact that the flavor is stronger and it's a good mint flavor. it has a little bit of a zing to it but it hasn't hurt my mouth. I find that these give me a better mouth feel than either Zylimelts or the Rite Aid brand which is what I was using before. I chose Rite Aid over Zylimelts because they had a better flavor and mouthfeel and were less expensive the Zylimelts, which left a scummy film in my mouth. Zylimelts are bit larger too & they hurt my mouth from their hard edges & size. Zylimelts leave a yucky coating in my mouth but didn't moisturize anywhere near as well as either Rite Aid or these Freshmelts. These have a lower height & more rounded edges so they don't hurt as much as the others. Fresh melts are also less expensive than the other two. Mostly Zylimelts had difficulty melting because they just don't moisturize well. Even my 99 year old Mom preferred Rite Aid over Zylimelt. Sadly she passed away before I discovered these wonderful FreshMelts.
Personally I would suggest if this flavor is too strong for you, see if they come in another flavor, or try the Rite Aid brand of Zylimelts, called "oral care dry mouth discs" in mint flavor also available here on Amazon. They don't have as rounded a top edge as OraCoat's 2 products but they definitely moisturize better than Zylimelts, in my opinion & I think they come in another flavor too. FreshMelts definitely have the most mit flavor, thanks to the mint oil in them, which is what irritates some people. I haven't had that issue & prefer the tingle & freshness, which makes these much better for daytime use as well & lasts longer than Pur mints or Therabreath's dry mouth lozenges (tho sensitive mouths avoid their mandarin mint, it's extremely zingy, maybe even acidic, at least even I only use if out of everything else because of how strong the zing is - which is probably why they were so much cheaper than other flavors. Ha ha. Time before I got another flavor & while tingly, wasn't bad. For Nighttime however, nothing beats the adhesive disc melts. I vote Freshmelts best for good strong flavor, best comfort/size profile & also cheapest, always a plus for me!
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Reviewed in the United States on March 8, 2022