Looking for thicker mountain bike grips to boost comfort and reduce hand fatigue? The following options prioritize extra diameter, lock-on security, and vibration dampening, helping riders with larger hands, long rides, or rough trails. The top picks below are ideal for enduro, trail, and all‑mountain riders who crave cushioning without sacrificing grip. Each section explains who it’s best for and why it stands out, plus a practical caution.
Super-soft silicone with strong shock absorption
| Product | Diameter | Best For | Why It Stands Out |
|---|---|---|---|
| PNW Loam MTB Grips (Regular 30 mm) | 30 mm | Riders with medium hands seeking minimal feel | Ultra-tacky rubber with dual-pattern surface for comfort and fatigue reduction |
| PNW Loam MTB Grips (XL 34 mm) | 34 mm | Riders with larger hands or long rides | Greater grip volume and comfort |
| ESI Grips Extra Chunky | 34 mm installed | Riders who want maximum cushioning | |
| Corki Mountain Bike Grips (Locking) | 130 mm length, rubber/TPR with aluminum lock-on | Riders who want a thick, locking grip for secure fit | Soft touch with anti-slip design and locking system |
| Ergon GA2 Fat MTB Grips | Extra diameter (fat grip) | All-mountain and gravity riders needing extra cushioning | Extra-soft German rubber and CNC clamps for stability |
Note: The table aggregates key diameter and user suitability cues from product features. Actual grip diameter can vary by model, and some grips offer multiple size options to match hand size and riding style.
PNW Loam MTB Grips – Regular 30 mm
These premium trail-specific grips use an ultra-tacky “Happy Camper” rubber that absorbs vibration and improves traction in wet conditions. The dual-pattern ergonomic surface blends thin horizontal traction strips for a supple feel with a thicker palm-support pattern to reduce fatigue on long rides. Best for riders with medium hands who want a balanced mix of control and comfort. Caution: the 30 mm diameter may still feel slim for hands accustomed to larger grips.
Best for: Enduro and trail riders who prefer a moderately thick grip and a responsive palm support. Why selected: the combination of vibration damping and a thoughtfully designed surface helps maintain grip in varied terrain.
Limitations: Not ideal for riders needing the maximum possible diameter; consider the XL option for extra volume.
PNW Loam MTB Grips – XL 34 mm
XL diameter provides more grip volume, making it a strong choice for bigger hands or riders seeking maximum comfort during longer adventures. The same premium Happy Camper rubber and dual-pattern surface deliver vibration damping and fatigue resistance. Best for: Riders with larger hands or those who ride longer distances and want extra padding. Caution: The larger diameter may be less maneuverable on smaller or slimmer handlebars.
Best for: Bigger hands, long sessions, and riders prioritizing comfort over a slim feel. Why selected: it maximizes cushion and reduces fatigue without compromising grip quality.
Limitation: If you ride aggressively with quick hand movements or prefer a slim profile, consider the 30 mm option or alternative grips with a firmer feel.
ESI Grips Extra Chunky – Silicone MTB
These extra chunky grips use soft, durable silicone to deliver maximum vibration dampening and comfort. With a 34 mm installed diameter and a standard 5 1/8” grip length, they are designed for riders who prioritize smooth, cushioned handling. Best for: Riders who want pronounced cushioning and reduced hand fatigue on longer rides. Caution: Silicone grips may wear differently against certain handlebar textures; trim to fit if needed.
Best for: Riders seeking the softest, most forgiving feel in a thick-grip package. Why selected: unmatched shock absorption helps reduce fatigue on challenging terrain.
Corki Lock-On Mountain Bike Grips
This Corki pair features a 130 mm length with a rubber/TPR blend and an aluminum lock-on system. The ergonomic shape and extra soft touch offer reliable grip and vibration dampening. Best for: Riders who want a thick, locking grip that stays secure on rough trails. Caution: Lock-on components may require periodic tightening to maintain a snug fit during heavy use.
Best for: Lock-on reliability and a thick, cushioned feel on demanding routes. Why selected: the locking mechanism plus soft grip surface enhances control on rough terrain.
Ergon GA2 Fat MTB Grips
Ergon GA2 Fat grips feature an extra diameter designed for all‑mountain and gravity riders seeking extra cushioning and reduced finger strain. They use a softer German rubber and CNC aluminum clamps for a stable, secure interface. Best for: Riders with larger hands or those who want more damping on aggressive terrain. Caution: May feel bulky for riders who prefer a slim grip profile or quick hand transitions.
Best for: Maximum cushioning and stability during long, technical descents. Why selected: the combination of extra diameter and damping delivers noticeable comfort improvements on demanding trails.
Buying Guide: Key Considerations for Thick Mountain Bike Grips
- Grip diameter and hand size: Choose 30 mm for medium hands or 34 mm for larger hands. Taller grips with larger diameters reduce fatigue on long rides but can affect control on tight turns.
- Material and damping: Silicone and specialized rubbers damp vibrations more effectively, reducing fatigue during extended sessions. Consider how the material tracks or slips in wet conditions.
- Surface pattern: Dual-pattern textures can balance a soft feel with palm support. A deeper or more aggressive pattern can improve grip in wet or muddy conditions.
- Lock-on vs standard: Lock-on designs stay secure under aggressive riding but require occasional maintenance. Standard grips may rotate or shift if hardware loosens.
- Length and compatibility: Grips around 130 mm fit most handlebars, but consider overall bar width and lever clearance to avoid interference with shifters or brakes.
- How do thicker grips affect control on tight corners?
- Are locking grips worth the extra cost?
- What maintenance is needed for thick grips?
- Can I mix grip sizes on the same bike?
- Do thicker grips affect hand fatigue more on long climbs or descents?
- Is there a recommended order to try grips?
Thicker grips can slightly increase the palm contact area, which may improve comfort but could reduce nimble steering for riders with very small hands. Try a 30 mm diameter first if unsure.
Lock-on grips reduce twisting and slipping on rugged trails, which is especially beneficial for aggressive riders or those with off-road handling that induces grip shifts.
Regularly inspect lock-on bolts or clamps, clean grip surfaces, and trim silicone or rubber where necessary to fit your hand position and bar width.
Yes, some riders use thicker grips on the dominant hand for fatigue resistance while keeping a slightly slimmer grip on the other side for quicker bar control. Ensure both ends still work with your levers and shifters.
Thicker grips primarily reduce fatigue by increasing cushioning; on long climbs, the benefit is from reduced vibration and palm pressure, while on descents, grip security and padding help manage impacts.
Start with a 30 mm option, then move to 34 mm if you still experience fatigue after several rides. For riders with larger hands, the 34 mm or extra chunky options are typically preferred.
Buying decisions should reflect personal hand size, riding style, and terrain preferences. The options above provide varied levels of cushioning, grip texture, and locking mechanisms to fit different needs for thick mountain bike grips.