Best 29er 140mm Rockshox and Fox Suspension Forks for Trail AM Bikes

140mm forks are a strong choice for modern trail bikes that need more control than a downcountry setup but still need to climb well. They give your front end more confidence on rough descents, steeper terrain, and faster trail riding without moving fully into heavy enduro territory.

RockShox and FOX both offer excellent 140mm options, from value-focused trail forks to premium Factory and Ultimate models. The comparison below breaks down five popular 140mm forks by price, performance, weight, stiffness, and best use.

RockShox Psylo 140mm suspension fork
RockShox Psylo (140mm)
Value-focused trail fork
Best Value Trail Check Price
Price
$350–$600Strong value for a modern 140mm trail fork
Performance
Damper varies by modelGold models are more refined; Silver models are more budget-focused
Weight
~2200–2800 gDepends heavily on Gold vs Silver version
Strength / Stiffness
Stanchions: 35mmGood stiffness platform for trail riding
Best For
Budget trail upgradesGreat when you want 140mm travel without Pike or FOX pricing
RockShox Pike Ultimate 140mm suspension fork
RockShox Pike Ultimate (140mm)
Premium lightweight trail fork
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Price
$800–$1,100Premium pricing, but top-tier Pike performance
Performance
Damper: Charger Ultimate-level platformExcellent control, support, and small-bump sensitivity
Weight
~1850–2000 gLight for a stiff 35mm 140mm trail fork
Strength / Stiffness
Stanchions: 35mmPrecise steering and strong trail support
Best For
Aggressive trail ridersBest pick when performance matters more than price
RockShox Pike Select 140mm suspension fork
RockShox Pike Select (140mm)
Performance trail fork
Best Value Pike Check Price
Price
$500–$800More affordable than Pike Ultimate
Performance
Damper: Select-level Charger platformStrong control with fewer premium adjustments
Weight
~1900–2050 gSlightly heavier than Ultimate but still trail-friendly
Strength / Stiffness
Stanchions: 35mmSame confident Pike chassis feel
Best For
Trail riders wanting Pike stiffness for lessExcellent middle-ground upgrade
FOX 34 Performance 140mm suspension fork
FOX 34 Performance (140mm)
Reliable all-around FOX trail fork
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Price
$600–$900Premium feel without Factory pricing
Performance
Damper: GRIP-style Performance platformSmooth, durable, and easy to tune
Weight
~1800–2000 gGood weight for a capable 34mm trail fork
Strength / Stiffness
Stanchions: 34mmPredictable tracking and efficient trail feel
Best For
Riders wanting dependable FOX performanceA strong balance of price, feel, and durability
FOX 34 Factory 140mm suspension fork
FOX 34 Factory (140mm)
Premium FOX trail fork
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Price
$900–$1,200Top-tier FOX pricing
Performance
Damper: Factory-level FOX platformExcellent traction, support, and high-speed control
Weight
~1750–1950 gLight and controlled for a premium trail fork
Strength / Stiffness
Stanchions: 34mmStiff enough for fast trail riding while staying efficient
Best For
Premium trail and lightweight all-mountain buildsBest FOX option when you want top performance

For the strongest 140mm trail performance, the RockShox Pike Ultimate and FOX 34 Factory are the premium choices. They are the best fit for riders who want a light but capable front end with high-end damping and confident control.

For better value, the RockShox Pike Select and FOX 34 Performance are excellent middle-ground options. The RockShox Psylo is the budget-friendly pick for riders who want modern 140mm travel and solid trail stiffness without spending premium fork money.

Prices shown are typical market ranges and may vary by seller and availability. Click “Check Price” to see current pricing through the affiliate links.