Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Haro
2021 Haro Double Peak I/O
Value Guide market data · 2021 Haro Double Peak I/O
12-month trend
14%
Direction and magnitude, not judgment
vs. category average
7%
Drops faster than category avg
Price over time - 2021 Haro Double Peak I/O
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Double model years
2021 Double Peak I/O lineup
Overview
About this bike
2021 Haro Double Peak I/O value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Fork
- SR Suntour XCM34 Boost LO DS T/A | 100mm travel | Tapered | Lockout
- Frame
- Double Peak I/O X6 Aluminum frame for Shimano STePS Tapered Head Tube | Internal battery Down Tube
Drivetrain
- Groupset
- Shimano Deore
- Cassette
- New Shimano Deore CS-M4100-10 | 10-spd | 11-46T
- Chain
- KMC e10S Sport
- Crankset
- Samox TEC39-SHE80 | Shimano 38T Chainring
- Rear Derailleur
- New Shimano Deore RD-M5120 | 10-spd | Shadow Plus
- Shifters
- New Shimano Deore SL-M4100-R 10-spd
Brakes
- Brake Levers
- Shimano BL-MT201 Hydraulic
- Brakes
- Shimano BR-MT200 Hydraulic Disc | 180mm / 160mm Center Lock Rotors
Cockpit
- Handlebars
- Alloy riser bar | 25mm Rise
- Headset
- FPD Dozer 1-1/8"-1.5" | AC Bearing bottom
- Saddle
- WTB Comfort Sport
- Seatpost
- Pivit Alloy Microadjust 31.6 x 350mm
- Stem
- 3D Forged alloy
- Grips
- WTB Weirwolf
Wheels & Tires
- Hubs
- Shimano MT-400 Front Thru-Axle | M-4050 Rear Quick Release | 32h | Cassette Body
- Rims
- Weinmann U-28 TL | Sleeved | Tubeless Ready | 27.5"x32mm | Double Wall w/ eyelets
- Tires
- Kenda Honey Badger | 27.5x2.20" | 60tpi
Pedals
- Pedals
- FPD Nylon | 9/16" Chromoly axles
E-System
- Battery
- Darfon Internal for ShimanoSTePS | 504Wh | Battery Lock
- Charger
- Darfon battery charger
- Display
- Shimano display
- Motor
- Shimano STePS E6100 | 250 W. | 60 Nm Torque
Accessories
- Accessories & Extras
- Chainstay kickstand
Frame sizing
XS4'10"-5'2"
S5'2"-5'6"
M5'6"-5'10"
L5'10"-6'2"
XL6'2"-6'6"
M highlighted as most common resale size. Sourced from catalog metadata.
Geometry
- Stack
- Varies by size
- Reach
- Varies by size
- Wheelbase
- Varies by size
Industry standard. Sourced from catalog metadata.
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Wheel condition
Inspect rims, hubs, spokes, and bearing play; ask about the tire age and any prior wheel rebuilds.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Battery health
Request battery cycle count and any diagnostic report; older packs lose range and capacity.
Inspection
Motor warranty
Verify motor warranty status and any firmware updates from the manufacturer dealer.