The Cassidy Alloy Frameset is our cure for the off-the-shelf enduro mountain bike. Build your rig, your way with a sophisticated platform to give you a rolling start. The 6061-T6 alloy frame is stiff enough to track where you point it and durable enough for truck-bed shuttle runs. Cassidy’s geometry and Split Pivot suspension design ensure a ride that mellows out steep, sketchy descents and keeps you planted on sustained, technical climbs. A RockShox Super Deluxe Select+ shock delivers 165 mm of rear travel, best paired with a 180 mm fork of your choice. Clever on-bike storage features such as a tube strap spot, a top tube mount, and full-size bottle mount keep you riding longer, or just keep the weight of a pack off your back. Whether you’re building an enduro race bike or a go-to rig for your local trails and park days, the Cassidy Alloy Frameset is a solid foundation.

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  Split Pivot +

  • Multiple travel classes in one chassis provides riders with the opportunity to adapt their bikes to various adventures

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• 

  Flip Chip

  • Provides the ability to alternate wheel and tire sizes
  • Riders can adjust for their terrain, or desired handling characteristics

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• 

  Suspension Kinematics

  • Lively, responsive ride feel with good bottom-out resistance
  • Free, active, and uniform suspension feel under braking
  • Efficient pedaling, stellar climbing traction, supple small-bump performance
  • Tunable for all riders

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• 

  Frame Protection

  • Our products are built from experience — we’ve been there enough to know that a carbon fork can benefit from added protection just as much as the downtube on a suspension bike.

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• 

  On-Bike Storage

  • Adventures require gear and riders should get to choose whether they carry it on their bike or on their body

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Build Kit

Frameset

Frame

Cassidy Aluminum

Color

Brushed Raw Aluminum

Rear Shock

RockShox Super Deluxe Select+

Components

Headset

FSA Orbit 1.5E

Seatpost Clamp

Salsa Lip-Lock seat collar, 35.4mm

Drivetrain

Chain guide

1x chain guide

Wheels

Rear Axle

Salsa Deadbolt rear thru axle, 12 x 197 mm

*Specifications are subject to change without notice

Geometry

 

Size	Small	Medium	Large	X-Large
A. Effective Top Tube	596.0- 595.0	619.0- 618.0	642.0- 641.0	665.0- 664.0
B. Stand Over	737.0- 740.0	740.0- 743.0	741.0- 744.0	741.0- 744.0
C. Reach	439.0- 443.0	460.0- 463.0	481.0- 484.0	502.0- 505.0
D. Stack	617.0- 615.0	622.0- 619.0	631.0- 628.0	640.0- 637.0
E. Total Seat Tube Length	405.0	430.0	455.0	480.0
F. Headtube Length	95.0	100.0	110.0	120.0
G. Headtube Angle	63.8 - 64.1	63.8 - 64.1	63.8 - 64.1	63.8 - 64.1
H. Seat Tube Angle	75.7 - 76.0	75.7 - 76.0	75.7 - 76.0	75.7 - 76.0
I. BB Drop	19.0- 15.0	19.0- 15.0	19.0- 15.0	19.0- 15.0
K. Chainstay Length	432.0- 431.0	432.0- 431.0	432.0- 431.0	432.0- 431.0
L. Fork Length Axle to Crown	589.0	589.0	589.0	589.0
M. Fork Offset	43.0	43.0	43.0	43.0
N. Wheelbase	1213.0- 1212.0	1236.0- 1235.0	1262.0- 1261.0	1287.0- 1286.0
Crank Arm Length	170.0	170.0	170.0	170.0
Handlebar Width
Recommended Rider Height	165.0 - 173.0	173.0 - 180.0	180.0 - 188.0	188.0
Stem Length	50.0	50.0	50.0	50.0

Measurements based on:

• an unsprung bike (no sag)
• a 29 x 2.4" tire measuring 746mm in diameter
• Standover is measured from vertically from ground to top of top tube 50mm forward of bottom bracket, subtract 9mm (0.3") for 27.5 x 2.8" tires
• Note: Where two measurements are listed, the first number is with Flip Chip in Low position; the second number is with Flip Chip in High position

Frame Specs

• Design Wheel/Tire Sizes29 x 1.9–2.6"
• Alternate Wheel/Tire Sizes27.5 x 2.8–3.0"
• Suspension Fork Length (Travel)170–180 mm
• Fork Offset42–51 mm
• Rear Spacing157 x 12 mm TA
• Rear Axle Size12 x 197 mm, TP = 1.75, TL = 20 mm
• Headset - UpperZS44
• Headset - LowerZS56
• Rear Shock Size230 x 62.5 mm
• Shock Mount, Fore Ø8 x 30mm
• Pivot Kit1215, 1585, 1587, 1589, 1590, 1592, 1594
• Seatpost30.9 mm
• Dropper Post CompatibleYes (internal)
• Seatpost Clamp35.4 mm
• Max Post InsertionSM = 195 mm, MD = 220 mm, LG = 245 mm, XL = 270 mm
• Front Derailleur ClampN/A
• Front Derailleur TypeN/A
• Derailluer HangerFS2322
• Bearings17287 (Qty 4), 6801 (Qty 6)
• Bottom Bracket73 mm BSA, threaded
• Crankset (Max Ring)Super Boost 157, 55–57 mm chainline (34t)
• Accessory MountsTop Tube Mounts: Compatible with Salsa EXP Series Direct Mount Top Tube Bag.
• Bottle Mounts1