Are they made out of silicon?

Yes a silicone foam, love these grips, best foam type grips out there.

Do these have locking end caps?

No. They just have end cap plugs.

Would these work on my Bontrager alloy, 31.8mm comfort sweep handle bars?

I have the ESI grips mounted on 31.8 carbon bars . They should fit on your bars, they are difficult to put on use a soapy water solution to help slide them on.

Is it easy to switch these grips from one handle to another?

Yes- I slip 4 long allen wrenches with rounded ends in between the grip and the handlebar and the grip slips off. To reinstall I use golf grip solvent.

Esi Grips Extra Chunky Mtb Grip Black

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Description

🚴‍♂️ Elevate your ride with grips that hug your hands and crush the bumps!

GRIP THAT WONT QUIT - Super sticky silicone grips secure firmly to handlebars—even in rain or sweat—for unmatched control.
RIDE LONGER HURT LESS - Silicone construction absorbs high-frequency vibrations to prevent hand numbness and fatigue.
TAILORED TO YOUR HANDS - Memory silicone molds to your grip over time, delivering a personalized, ergonomic fit.
BUILT TO LAST LOOK FRESH - UV resistant and non-porous material ensures no hardening, fading, or wear—ride with confidence season after season.
CHUNKY COMFORT LIGHTWEIGHT FEEL - Extra thick 34mm diameter grips provide maximum shock absorption while weighing only ~80g.

The ESI Grips Extra Chunky MTB Grip in black is a premium silicone handlebar grip designed for mountain bikers seeking maximum vibration damping and comfort. Featuring a thick 34mm diameter for superior shock absorption, these grips are UV resistant, non-porous, and maintain their softness and color over time. Their silicone memory material custom fits your hands, enhancing control and reducing fatigue on long rides. Lightweight at approximately 80 grams, they securely adhere to handlebars even in wet conditions and can be trimmed to fit various setups.

Specifications

ASIN	B00AOVWA8K
Best Sellers Rank	#249,025 in Sports, Fitness & Outdoors ( See Top 100 in Sports, Fitness & Outdoors ) #628 in Cycling Grips
Brand Name	ESI Grips
Colour	Black
Compatible with Vehicle Type	Bicycle
Country Of Origin	USA
Customer Reviews	4.6 4.6 out of 5 stars (1,871)
Global Trade Identification Number	00181517000544
Item Weight	0.01 Ounces
Manufacturer Part Number	91-0495K
Material Type	Silicone
Model Number	XLCBK
Size	130mm
UPC	181517000544

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ESI Grips Extra Chunky MTB Grip Black

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Description

Specifications

Common Questions