The Marzocchi MY25 Bomber Z1 29" Fork brings proven performance and durability to aggressive trail, enduro, and park riders who want a fork that just works—ride after ride. Built around a stout 36mm chassis, this fork delivers confident front-end stiffness and precise steering control when terrain gets rough. The redesigned lower legs and stiffer arch improve overall chassis stability, while bypass channels help maintain consistent small bump sensitivity across the full range of travel.
The Rail/Grip damper offers a smooth compression sweep adjustment, making it easy to dial in support from fully open to firm with one simple control. Rebound adjustment keeps setup quick and intuitive for riders who prefer more time on the trail and less time in the garage. The Float Evol air spring system provides a supple initial stroke and a bottomless feel deeper in the travel, ideal for long descents and hard landings.
A tapered steerer and 15QRx110 thru-axle add stiffness and precision, while compatibility with 180–203mm rotors and up to 2.6-inch tires makes this fork ready for modern trail setups.
36mm chassis provides torsional stiffness and steering precision for aggressive riding
Redesigned lower legs and arch increase rigidity and improve overall handling
Rail/Grip damper offers easy compression tuning from open to firm
Float Evol air spring delivers a plush feel with excellent mid-stroke support
Bypass channels reduce pressure buildup for smoother suspension action
15QRx110 thru-axle and tapered steerer enhance front-end stiffness
Compatible with 180–203mm rotors and up to 2.6" tires
Starting weight: 2249g
Specifications & Identifiers
Brake Type
Post Mount 180
Color
Shiny Black
Crown Race
40mm
Defined Color
Black
Designed for ebike
No
External Adjustments
High Speed Compression Damping, Rebound Damping
Fork Rake
44mm
Front Axle Type
15mm Thru x 110mm
Front Hub Spacing
110mm
Lockout
Crown Mounted
Maximum Tire Width
2.6"
Negative Spring
Air
Offset
44mm
S.H.I.S. Stem Clamp
28.6 Threadless
S.H.I.S. Stem Clamp Diameter
28.6
Spring
Air
Steerer Tube
1-1/8 to 1-1/2" Tapered
Steerer Tube Length
263mm
Travel (mm)
150mm, 160mm
Weight
-
Wheel Size
29er
Shiny Black - 150mm UPC
821973490281
Shiny Black - 150mm MPN
912-01-259
Shiny Black - 160mm UPC
821973490366
Shiny Black - 160mm MPN
912-01-258
Tree Fort ID:
333222475314
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