How to Install Motorcycle Hand Grips: A Step-by-Step Guide

Upgrading your motorcycle’s hand grips is one of the most straightforward and cost-effective ways to improve riding comfort, reduce hand fatigue, and enhance control. Over time, factory rubber grips wear down, become slick, or harden from exposure to UV rays and environmental elements. In tropical climates with high humidity and frequent heavy downpours, worn grips can quickly become slippery, compromising your hold on the handlebars and making precise throttle control difficult.

Installing aftermarket hand grips allows you to customize the texture, thickness, and vibration-dampening properties of your controls. While the process is highly accessible for home mechanics, it requires careful attention to detail to ensure the throttle operates smoothly and the grips remain securely bonded to the handlebars. Following a systematic approach ensures a professional-grade installation that enhances both comfort and safety on the road.

Preparation and Compatibility Checks

Before purchasing new grips or removing your old ones, you must verify that the replacement set is compatible with your motorcycle’s handlebar dimensions. Standard motorcycle handlebars typically have an outer diameter of 7/8 inches (22mm), but cruiser-style motorcycles often utilize 1-inch (25.4mm) handlebars. Additionally, the two grips in a replacement set have different inner diameters; the grip designed for the right side has a larger inner diameter to slide over the plastic throttle tube, while the left-side grip is narrower to fit directly onto the bare metal handlebar. Always check the product packaging or manufacturer specifications to confirm you have the correct sizes for your specific vehicle model and year.

Gathering the necessary tools and materials beforehand prevents interruptions during the installation process. You will need a utility knife or heavy-duty shears, a thin flathead screwdriver or grip removal tool, isopropyl rubbing alcohol, clean microfiber rags, and a dedicated motorcycle grip adhesive. If your motorcycle is equipped with bar-end weights, handguards, or mirrors mounted to the handlebar ends, you will also need the appropriate hex keys or wrenches to remove these components before accessing the grips.

Specialized configurations require extra caution during the preparation phase. If your motorcycle features factory-installed heated grips, cutting them off with a utility knife will sever the internal heating elements, rendering them useless. For heated grip systems or complex electronic throttle-by-wire setups, consult your original vehicle service manual or seek assistance from a qualified professional to avoid damaging expensive electrical components.

How to Remove Old Motorcycle Hand Grips

If you do not plan to reuse your existing hand grips, the fastest and most common removal method is slicing them off. Begin by wearing safety glasses to protect your eyes from any flying debris or residual adhesive. Position a sharp utility knife at the outer edge of the grip and make a shallow, controlled cut along the length of the rubber, pulling the blade away from your body. Take extreme care on the right side to avoid cutting too deeply, as a deep slice can easily gouge or crack the plastic throttle tube underneath.

When you want to preserve the old grips for future use, a non-destructive removal method is necessary. Gently insert a thin, flathead screwdriver or a specialized grip removal tool between the inner edge of the grip and the handlebar. Once a small gap is created, spray a generous amount of isopropyl rubbing alcohol or slide the nozzle of a compressed air gun into the opening. Directing a blast of compressed air under the rubber expands the grip, allowing you to slide it off the handlebar with minimal effort.

Handling the throttle-side grip requires extra patience due to the design of the throttle sleeve. Many original equipment manufacturer (OEM) throttle tubes feature raised plastic ridges, safety flanges, or small tabs designed to keep the factory grip from slipping. Carefully inspect the bare throttle tube once the old rubber is removed; if these ridges are highly pronounced, they may prevent your new aftermarket grips from sliding on smoothly or seating evenly.

Once the old grips are removed, the handlebar and throttle tube must be meticulously cleaned to ensure the new adhesive bonds correctly. Spray the bare metal on the left side and the plastic tube on the right side with isopropyl rubbing alcohol, then scrub the surfaces with a clean rag to remove old glue residue, dirt, grease, and surface oxidation. Avoid using harsh chemical solvents or petroleum-based cleaners, as they can degrade plastic throttle tubes, damage nearby switch housings, or leave an oily film that prevents the new adhesive from curing.

Step-by-Step Installation of New Hand Grips

Installing the Clutch-Side Grip

To install the left-side (clutch) grip, begin by dry-fitting the grip onto the bare handlebar to check its length and alignment. Slide the grip on without any adhesive to see if it sits flush with the switch housing and to determine if you need to trim the open end to accommodate bar-end weights or handguards. Once you have verified the fit, slide the grip back off and prepare the adhesive.

Apply a thin, even bead of dedicated motorcycle grip adhesive inside the new grip and a light coating onto the clean handlebar surface. If you are using hairspray as a temporary lubricant and mild adhesive, spray it generously inside the grip and slide it on immediately before it begins to tack up. In highly humid tropical environments, keep in mind that hairspray takes significantly longer to dry and can reactivate when exposed to heavy rain, making dedicated grip glue the safer choice for long-term security.

Slide the grip onto the handlebar in one smooth, continuous motion to prevent the adhesive from grabbing halfway down the bar. If the grip becomes difficult to push, use a twisting motion to help distribute the lubricant and ease it into place. Once the grip is fully seated, immediately wipe away any excess adhesive that squeezes out of the ends using a clean rag dampened with isopropyl alcohol, then allow the bond to cure according to the adhesive manufacturer’s instructions.

Installing the Throttle-Side Grip

Before installing the right-side grip, inspect the plastic throttle tube once more to ensure it is completely smooth and free of debris. If the aftermarket grips you purchased are rigid or have a tight tolerance, you may need to use fine-grit sandpaper to gently smooth down any factory plastic ridges on the throttle tube, working carefully to avoid thinning or weakening the plastic structure.

Apply a very sparing amount of grip adhesive to the outer surface of the throttle tube, focusing primarily on the outer half of the tube. Applying too much glue near the inner flange can cause the excess adhesive to squeeze backward into the throttle housing when you slide the grip on. If glue seeps into the housing or under the throttle sleeve, it can bind the throttle mechanism, causing the throttle to stick open and creating an extremely dangerous riding hazard.

Slide the larger-diameter grip onto the throttle tube, ensuring you leave a small, visible gap of approximately 2 to 3 millimeters between the inner edge of the grip and the stationary switch housing. This clearance prevents the rubber grip from rubbing against the plastic housing, which can cause friction and prevent the throttle from snapping shut. Align any logos or ergonomic finger grooves to your preferred riding position before the adhesive begins to set, and wipe away any excess glue immediately.

Post-Installation Safety and Function Checks

Before starting your motorcycle or taking it out on the road, you must perform a series of rigorous safety checks to verify that the controls function perfectly. The most critical safety check is the throttle snap-back test. With the engine turned off, twist the throttle to the fully open position and release it; the throttle must snap back to the fully closed position instantly and smoothly without any hesitation or dragging. Repeat this test with the handlebars turned fully to the left, centered, and turned fully to the right to ensure that routing, cables, and grip clearances remain unobstructed at all steering angles.

Next, test the physical security of both grips by grasping them firmly and attempting to twist them with moderate force. The grips should not slide, rotate, or play on the handlebar or throttle tube. If either grip rotates or slides easily, the adhesive has not cured properly, or there was residual oil on the bar during installation, requiring you to remove the grip, clean the surfaces thoroughly, and reapply the adhesive.

Verify that the newly installed grips do not interfere with the operation of your control levers. Pull the front brake lever and the clutch lever completely toward the handlebars to ensure they do not catch on the grip flanges, bar-end weights, or handguards. If you installed bar-end weights, double-check that they are securely tightened and do not pinch the outer edge of the throttle grip, which can lock the throttle in place.

Finally, respect the curing time specified by your adhesive manufacturer before riding. While some quick-drying adhesives cure within a few hours, many high-strength grip glues require a full 24 hours to achieve maximum bond strength, especially in humid or damp conditions. Prematurely riding the motorcycle before the glue has fully cured can cause the grips to slip during a ride, compromising your control and safety.

Frequently Asked Questions (FAQ)

Can I use hairspray instead of dedicated grip glue?

Hairspray can be used as a budget-friendly alternative because it acts as a lubricant when wet, allowing the grip to slide on easily, and becomes tacky as it dries to form a moderate bond. However, hairspray is water-soluble and has limited heat resistance. In tropical regions characterized by high humidity, intense engine heat, and heavy rainfall, moisture can seep under the grip and reactivate the hairspray, causing the grip to slip unexpectedly. For reliable, long-term security under demanding riding conditions, a dedicated, weather-resistant motorcycle grip adhesive is highly recommended.

Why is my throttle sticking after installing new grips?

A sticking throttle is typically caused by one of three common installation errors. First, the grip may have been pushed too far inward, causing the rubber flange to rub against the stationary switch housing and create friction. Second, excess grip adhesive may have seeped under the throttle tube or into the switch housing, binding the sleeve to the handlebar. Finally, if you reinstalled bar-end weights or handguards, they may be pinching the outer edge of the grip. To resolve this, loosen the bar-end components, slide the grip slightly outward to create a small clearance gap, and ensure no adhesive has contaminated the inner throttle mechanism.

How do I remove grips without cutting them?

To remove grips without damaging them, you must break the adhesive bond using compressed air or a mild solvent. Gently slide a thin flathead screwdriver or a specialized grip removal tool under the inner edge of the grip to create a small pocket. Spray a small amount of isopropyl rubbing alcohol into the gap, or insert a compressed air nozzle and apply a quick burst of air. The air pressure or the evaporating alcohol will expand the rubber and break the glue barrier, allowing you to twist and slide the grip off the handlebar intact so it can be reused or stored.