Bicycle Archive · Specification report

2021 Kona Blast

Velopedia Archive ID 900001982

Overview

Model year	2021
Brand	Kona
Model	Blast
Bicycle type	Mountain
Archive ID	900001982
Original MSRP	$1,049.00
Colors	Gloss Chocolate w/ Yellow, Rust & Flame Fade Decals
Sizes	S; M; L; XL

Frameset

Frame construction	Kona Race Light 6061 Aluminum Butted
Frame material	Aluminum
Fork	RockShox Judy Silver TK Solo Air 100mm
Rear shock	n/a

Drivetrain

Shifters	Shimano Deore
Front derailleur	n/a
Rear derailleur	Shimano Deore
Crankset	FSA Alpha Drive 1x; Chainring: 28t
Bottom bracket	FSA 7420 73mm
Cassette	Shimano Deore 11-51t 11spd
Chain	KMC X11
Pedals	Kona JS2

Brakes

Brakes	Brake Calipers: Shimano MT201 Hydraulic; Front Brake Rotor: Shimano RT10 180mm (centerlock); Rear Brake Rotor: Shimano RT10 160mm (centerlock); Brake Levers: Shimano MT201 Hydraulic

Cockpit & contact points

Headset	FSA No.57B
Handlebar	Kona XC/BC Riser
Stem	Kona XC
Saddle	Kona XC
Seatpost	Kona Thumb 31.6mm

Wheels & tires

Hubs	(F) Formula 100x9mm (centerlock) / (R) Shimano 135x10mm (centerlock)
Rims	WTB ST I27 TCS 2.0
Spokes	Stainless Black 14g
Front tire	Maxxis Forekaster 27.5x2.35"
Rear tire	Maxxis Forekaster 27.5x2.35"
Wheel size	27.5"

Geometry · S

Seat tube	370 mm
Top tube	572 mm
Head tube	100 mm
Head-tube angle	68°
Seat-tube angle	75°
Chainstay / rear center	435 mm
Wheelbase	1109 mm
Bottom-bracket drop	50 mm
Bottom-bracket height	305 mm
Reach	415 mm
Stack	585 mm
Standover height	710 mm
Fork offset / rake	42 mm
Front center	678 mm
Fork length / axle-to-crown	490 mm

Geometry · M

Seat tube	420 mm
Top tube	600 mm
Head tube	115 mm
Head-tube angle	68°
Seat-tube angle	75°
Chainstay / rear center	435 mm
Wheelbase	1139 mm
Bottom-bracket drop	50 mm
Bottom-bracket height	305 mm
Reach	440 mm
Stack	599 mm
Standover height	719 mm
Fork offset / rake	42 mm
Front center	709 mm
Fork length / axle-to-crown	490 mm

Geometry · L

Seat tube	470 mm
Top tube	628 mm
Head tube	125 mm
Head-tube angle	68°
Seat-tube angle	75°
Chainstay / rear center	435 mm
Wheelbase	1168 mm
Bottom-bracket drop	50 mm
Bottom-bracket height	305 mm
Reach	465 mm
Stack	608 mm
Standover height	725 mm
Fork offset / rake	42 mm
Front center	737 mm
Fork length / axle-to-crown	490 mm

Geometry · XL

Seat tube	530 mm
Top tube	667 mm
Head tube	140 mm
Head-tube angle	68°
Seat-tube angle	75°
Chainstay / rear center	435 mm
Wheelbase	1208 mm
Bottom-bracket drop	50 mm
Bottom-bracket height	305 mm
Reach	500 mm
Stack	622 mm
Standover height	748 mm
Fork offset / rake	42 mm
Front center	778 mm
Fork length / axle-to-crown	490 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 22, 2026.