[Gravesport]

Originally developed by our racing department for the 2021 + ZX-10R. This throttle tube also fits the ZX-4RR that shares the same negative travel or "dead zones" during throttle engagement. This part is a direct fix for these issues. Official description below. Also for racers that need a switch free housing we have those as well.

ZX-10 + ZX-4RR Throttle Tube

Graves Motorsports Kawasaki ZX-10R (2021 + only) Throttle Tube is designed to give your bike a progressive throttle pull and improved response over stock. Removes the negative travel dead zone resulting in smoother and more consistent off to on throttle application. This throttle tube is...

www.gravesport.com

ZX-10 + ZX-4RR Throttle Tube Housing

Graves Motorsports Kawasaki ZX-10R (2021 + only) / Kawasaki ZX-4RR (2023) Race Use Only part. This kit gives you a clean, button free throttle housing for your bike. Great for use when adding your own aftermarket switches. No instructions will come with this WORKS part. Use with our throttle...

www.gravesport.com

Graves Motorsports Kawasaki ZX-10R (2021 + only) / Kawasaki ZX-4RR (2023) Removes the negative travel dead zone resulting in smoother and more consistent off to on throttle application. This throttle tube is stronger, more durable and is a direct replacement for the OEM plastic throttle tube. Developed around the Graves Motorsports race programs. Constructed of A7075 -T6 aluminum. Simple drop in install (requires you to remove bar end, 4 bolts to open throttle housing, swap grips, install tube and replace bolts / bar end). It's that SIMPLE! No instructions will come with this WORKS part. You can also use the switch free throttle housing we offer (link suggestion below).

This product is intended for closed course competition use only. Use of this product for any other purpose is strictly prohibited.

FITMENT: Kawasaki ZX-10R 2021 + / Kawasaki ZX-4RR 2023

Graves Motorsports Kawasaki ZX-10R (2021 + only) / Kawasaki ZX-4RR (2023) Race Use Only part. This kit gives you a clean, button free throttle housing for your bike. Great for use when adding your own aftermarket switches. No instructions will come with this WORKS part. Use with our throttle tube specifically developed for the ZX-10R / ZX-4RR (see product suggestion below).

This product is intended for closed course competition use only. Use of this product for any other purpose is strictly prohibited.

FITMENT: Kawasaki ZX-10R 2021 + / Kawasaki ZX-4RR 2023

 

[misnblu]

Really good to know it's also a drop in for the factory throttle housing.
Im not racing so this will be a bonus for better throttle control and eliminating on off issues as stated.

Will this tune also shorten the pull over the stock tune or is it identical?
Just curious and thanks.

 

[Chuck Graves]

Really good to know it's also a drop in for the factory throttle housing.
Im not racing so this will be a bonus for better throttle control and eliminating on off issues as stated.

Will this tune also shorten the pull over the stock tune or is it identical?
Just curious and thanks.

The throttle tube cannot change the distance in degrees from 0 tps to wide open. It does remove the forward / negative travel that the stock tube will travel, eliminating the feeling of nothing happening when the riders hand moves from beyond 0 to just open. This results it greater consistency and reduced rider fatigue.

 

[ithaca00]

Perhaps a bit down the rabbit hole... With cable actuated throttle bodies you could swap out throttle tubes with different ramps and 1/4-turn, etc.. Being a drive-by-wire setup does this eliminate that option? Would the ECU flash help with changing throttle response?

 

[Chuck Graves]

Perhaps a bit down the rabbit hole... With cable actuated throttle bodies you could swap out throttle tubes with different ramps and 1/4-turn, etc.. Being a drive-by-wire setup does this eliminate that option? Would the ECU flash help with changing throttle response?

With the drive by wire the tuner can build almost any curve they wish. Caution ⚠ this can also be very dangerous. This must be done by an expert.