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BBR XR50 Rev Box
BBR XR50 Rev Box


Description See Also: 10 Reviews 4 Questions Fitment Part Numbers
Item #BBR000J

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10 Reviews
4.6 out of 5 stars
5 Star   7 4 Star   2 3 Star   1 2 Star   0 1 Star   0
All Reviews
c2500kid Verified Purchaser
2 years 9 months ago
Durability5/5Ease of Installation5/5Performance5/5Power5/5Style5/5
Works as advertised

Easy installation. Simple plug and play. Works great.

Over 7 years ago Grand Rapids,MI

Works Great does what is says.

Over 8 years ago Morristown, NJ
Durability5/5Ease of Installation5/5Performance5/5Power5/5Style5/5
Good Part

The BBR Rev box for my crf50 was a good purchase. It supplied a power increase and removed the rev limiter as promised. The power increase was small but what do you want for something that is really just plug and play. Installation was easy, I just had to remove the old computer and install this one in its place.

DirtRider348 Top 250 Contributor
Over 9 years ago Watkinsville, Ga
Durability5/5Ease of Installation5/5Performance5/5Power5/5Style5/5

I installed this on my 08'CRF80 and it definitely increased the over rev in 3rd and 4th gear. You get more torque and gearing into your bottom end. I love this product and will put it on any other pit bike i get!

Over 9 years ago Castro Valley, CA
Durability5/5Ease of Installation5/5Performance5/5Power5/5Style5/5
You won't regret buying it

I bought this on 11/23/09 for my honda crf70f and it came 11/30/09 it was easy to install although the original hanger didn't fit because this box is a little bigger than stock but i tied it on with a zip tie and stayed there just fine i definetly felt more throttle response and more power on second and third gear i am really happy i bought it and its a cheap power booster. Here are some pics

Over 10 years ago Little egg harbor,new jersey
The Best!! Buy it over REV MAX

This features more power,The Best throttle response and 10 other things but this little machine would attatch to your wire harness under the gas tank only on A DIRTBIKE.
this makes My Bike (alittle CRF80F) spound nastty. think of what it would sound on yours!!

Starts on first kick

Over 11 years ago Danville,Ca
Good product.

Much better throttle response and rev!

Over 11 years ago new london ct

this is the best thaing for a 50

Over 11 years ago akron, ohio

cannot tell in 1st gear but for 2nd and 3rd i could tell for sure.

Over 11 years ago Northern, CA
Rev it up!

My opinion of this product was that it really didnt do that much other than let the bike rev up a bit higher. For a cheap modification that you may notice with a big bore kit i would reccomend it as something you do later on. Dont use it as your first priority.

4 Questions
Answered:   4
Not Yet:   0
Q: Seeing crf 100’s don’t have a rev limiter what will I benefit from it?
Over 10 months ago
Dan Gearhead
Top 25
Over 10 months ago
A: This unit uses advanced ignition curves for a more complete burn, resulting in crisper throttle response and improved efficiency.
Q: Can I use this on a ssr 125 pit bike? Will it fit?
Over 4 years ago
MotoSport Staff Expert
Over 4 years ago
A: Fitment cannot be guaranteed on the SSR125. These BBR rev boxes are designed specifically for Honda minis (xr50/crf50, crf70, crf80, crf100).
Q: How soon will this product be back in stock and how will I know when you restock it?
Over 4 years ago
MotoSport Staff Expert
Over 4 years ago
A: For current availability and ETA please contact our Sales Department.

Dirt Bike / ATV: 1-888-676-8853
Q: Is there a down side to have this in my CRF80F
Over 10 years ago
Is it bad or a down side of putting this rev box into my CRF80F?
Expert MotoSport Staff
Over 10 years ago
A: No actual harm will be done to the bike by replacing the CDI box. You will benefit with more power.

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See Fitments
# Part Numbers
Product Variant Manufacturer Part #
BBR XR50 Rev Box 451-HXR-5001
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