Just announced, the new 2025 Specialized Chisel has a revolutionary alloy frame constructed with D’Aluisio Smartweld, a patented technology that Specialized claims results in the lightest alloy full-suspension XC bike available. Find all the details here…

The new 2025 Specialized Chisel has a lot to live up to. In their press release, Specialized claims to have made the lightest alloy full-suspension XC bike available, with a frame that “rides like an absolute dream” and exceptional handling and ride quality. To back this, Specialize quotes the Chisel frameset at a weight of 2,720 grams versus the 3,290 grams (+570) Scott Spark Alloy and 3,740 grams (+1,020) Trek Top Fuel Alloy frames. They accomplished this by pioneering and patenting a totally new way to weld alloy bikes called D’Aluisio Smartweld, named after the engineer who created it, Chris D’Aluisio.

2025 Specialized Chisel
  • 2025 Specialized Chisel
  • 2025 Specialized Chisel
  • 2025 Specialized Chisel
  • 2025 Specialized Chisel
  • 2025 Specialized Chisel

About D’Aluisio Smartweld

Typical alloy frame construction joins tubes with welds at the highest stress points. The concept behind D’Aluisio Smartweld is that it enhances strength and reduces weight by using hydroformed tube junctions, which move the joint away from the highest stress areas and create a “valley” for the weld bead. The resulting frame design is a highly manipulated tubeset featuring continuously varied wall thicknesses and shaping, which Specialized insists provides stiffness for efficiency and compliance for comfort. Those seem like bold claims, but here’s a little more about the frame.

2025 Specialized Chisel

One-piece Seat Tube/Bottom Bracket

Alloy bike frames traditionally have a seat tube that’s a separate component with pivots and the bottom bracket shell welded on. The Chisel’s frame is different and reduces extra material and weight by featuring a one-piece hydroformed seat tube that integrates the seat tube pivot, main pivot, and bottom bracket shell.

Flex Stay

The Chisel features a flex stay rear end for class-leading suspension performance, eliminating the extra weight and maintenance associated with traditional pivot designs. Extensive field and lab testing demonstrate that the Chisel achieves the efficiency, control, and lightweight benefits of a flex stay design using advanced alloy typically seen in carbon bikes.

2025 Specialized Chisel

2025 Specialized Chisel Geometry

The 2025 Specialized Chisel’s geometry is based on the Epic 8, Specialized’s World Cup race bike. Advanced suspension kinematics, Ride Dynamics tuned suspension, and progressive geometry from the Epic 8 are all incorporated into the Chisel. Specialized touts that these characteristics allow it to handle more aggressive trails and terrain with confidence and speed. Here are the numbers:

Size XS S M L XL
STACK 602.3mm 593mm 606mm 620mm 629mm
REACH 390mm 415mm 445mm 470mm 495mm
HEAD TUBE LENGTH 95mm 95mm 110mm 125mm 135mm
HEAD TUBE ANGLE (LOW) 66.5° 66.5° 66.5° 66.5° 66.5°
HEAD TUBE ANGLE (HIGH) 67° 67° 67° 67° 67°
BB HEIGHT (LOW) 326mm 336mm 336mm 336mm 336mm
BB HEIGHT (HIGH) 332mm 342mm 342mm 342mm 342mm
BB DROP (LOW) 46mm 36mm 36mm 36mm 36mm
TRAIL 113mm 113mm 113mm 113mm 113mm
FORK LENGTH, FULL 530mm 530mm 530mm 530mm 530mm
FORK RAKE/OFFSET 44mm 44mm 44mm 44mm 44mm
FRONT CENTER 682mm 706mm 742mm 773mm 802mm
CHAINSTAY LENGTH 437mm 437mm 437mm 437mm 437mm
WHEELBASE 1,115mm 1,141mm 1,177mm 1,208mm 1,237mm
BIKE STANDOVER HEIGHT 756mm 777mm 777mm 787mm 790mm
SEAT TUBE LENGTH 375mm 392mm 410mm 450mm 500mm
SEAT TUBE ANGLE 75.5° 75.5° 75.5° 75.5° 75.5°
TOP TUBE LENGTH, HORIZONTAL 527mm 565mm 602mm 634mm 664mm

Standard component specs on the new Chisel include:

  • Cockpit: 29mm rise bars
  • Fork: 120mm travel RockShox fork
  • Shock: 110mm of rear wheel travel (metric 190×40) Dropper: Dropper posts on all models
  • Brakes: SRAM Level T Brakes
  • Front Tire: Ground Control 2.35
  • Rear Tire: Fast Trak 2.35

The 2025 Specialized Chisel is available as a frameset for $2,000 or as a complete for $2,600 (base Shimano build) or $3,400 (Comp Shimano build). Find all the details over at Specialized.com.



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