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CJR Performance

24mm Throttle Body Kit - 2019+ CRF110's

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  • $ 269.95
10 reviews


Each Throttle Body Kit Includes

-Intake manifold
-Injector Adapter (Excluded with the CNC manifold as it is not needed)
-Genuine Keihin throttle body

Starting off with a throttle body/manifold kit and a tune is the best bang for your buck you can do for your 2019 and newer Honda CRF110F. This 24mm kit works great with the stock 110cc and has been tested with excellent results on our 132cc kit. All throttle body kits will require a re-map of the stock ECU or aftermarket ECU to increase the amount of fuel delivered to the engine. Running these throttle body kits without a fuel controller will cause the bike to run dangerously lean.
We offer this flash service and use CJR tunes. You can also go direct through CJR if you prefer.

Keihin 24mm or Ported 26mm Throttle Bodies:
The factory throttle body is a big limitation for the CRF110F coming in at 19mm. Our 24mm kit offers improved performance especially noticeable in the mid range and top end. With a 25% larger butterfly in the throttle body to work with the larger intake manifold. From idle to 5,000rpm the bike feels exactly as it did before (with intake/exhaust/tune), from 5,000rpm and up, the bike does not stop pulling! As you can see from the dyno graph, we are making peak power at the stock 9800rpm limit! Looking at the data behind the scenes, we are able to accelerate 2 full seconds faster on a 3rd gear 15mph to 37mph run. This is a modification you can definitely feel for a night and day different bike.
Or go with the ported 26mm setup for even more top end gains or for those big bore setups.

Manifold Options:

Keihin High Flow CAST Intake Manifold:
This is the largest restriction found on the CRF110
Keihin Cast 26-22mm Intake Manifold for Stock Cylinder Head for 24mm or 26mm throttle body (Requires adapter bracket) (Can be used with OEM 19mm Throttle Body with added specialty Screws)

Rad Speed and Design High Flow CNC Intake Manifold:

- Built from 6061-T6 aircraft grade aluminum
- Works with stock or 24mm Honda Grom throttle body
- New hardware is provided to allow interchanging of throttle bodies
- Inner diameter starts with 24.5mm at the throttle body and tapers down to 21.5mm to match the stock cylinder head port
-  Works with the stock injector, map sensor, and hardware

CJR CNC 26-22mm Intake Manifold (NEW)
For Stock Cylinder Head. Can be used with the stock OEM 19mm throttle body OR Keihin 24mm/26mm throttle body with added specialty screws (does NOT require injector adapter bracket)

Customer Reviews
5.0 Based on 10 Reviews
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Dean D.
United States
I recommend this product

Best sleeper mod

I have the Dyno jet to reflash this thing within like 30 seconds I’ve been able to put different mods on and return the bike instantly and this is definitely The biggest performance game over a stock 110 so far Even with the stock exhaust or an aftermarket one

Paul V.
United States United States
I recommend this product


DEFINITELY more power up top! you won't feel much difference down low (gearing can make up for that); mid range is slightly better. I did this at the same time as a yoshimura pipe and PAX intake tube and had CJR tune according ly.. can keep up with 125+150cc now np. despite what I've read, I did have to reset my TPS sensor as I was getting bogging/stalling issues at partial + full throttle. ALL GOOD NOW. $250 for this kit, $150 CJR tune, $600 yoshimura = $1000 on a $2499 bike (msrp). this excluding all accessories to fit an adult rider (bars, pegs, foot controls, suspension components, etc). SO YEAH, food for thought, you can't just run this kit and get the most from it without spending more!

Factory Minibikes 24mm Throttle Body Kit - 2019+ CRF110's ReviewFactory Minibikes 24mm Throttle Body Kit - 2019+ CRF110's ReviewFactory Minibikes 24mm Throttle Body Kit - 2019+ CRF110's ReviewFactory Minibikes 24mm Throttle Body Kit - 2019+ CRF110's Review
Joel W.
United States United States


Get this with larger injector and aRacerSmart ecu and big bore kit you will have the power your looking for

Jay V.
United States United States
I recommend this product

Cjr 24mm TB

This item is very nicely done. Quality from CJR is too of the line and the service from Factory Mini is great as well These really make these bike work well

United States United States
I recommend this product

Great quality

Crazy fast shipping and quality parts a+ service!