Kona Blast 27.5" Mountain Bike 2021 - Hardtail MTB
Much like its larger-wheeled sibling, the Mahuna, the Blast is the perfect all-rounder for the person looking to ride off-road or cruise around the backwoods bike paths. It features the updated RockShox Judy Silver TK Solo Air fork with 100mm of travel, as well as a Shimano Deore drivetrain and disc brakes. If you’re a fan of plus bikes, you can run up to 2.8” tires on the the WTB ST i27 TCS rims. The Blast is where the mountain meets functionality at a great price.
Key Features:
- Kona 6061 Aluminum
Kona 7005 and 6061 Aluminum alloys are used extensively throughout our fleet of mountain and asphalt bicycles. A tough, durable, light alloy, both Kona 7005 and 6061 deliver fantastic, reliable performance that lasts for thousands of rides. Much of our 7005/6061 tubing is butted and/or formed, meaning the tubing’s wall thickness can be increased or decreased, as well as shaped, so we can fine-tune a particular frame’s strength and ride characteristics depending on its intended application.
- Internal Headset
Bearing cups are actually pressed into the frame and are easily removable. An internal headset also reduces stack height, so the height of the stem and bars are more adjustable, giving the rider the best fit possible.
- Tapered Head Tube
More girth at the bottom of the head tube better distributes shock force, prolonging the bearing life of the headset itself and eliminating brake shudder, while providing confident steering performance. The inherent strength of its triangular design also means a stronger steering position and improved balance, giving the rider more control in rough terrain. A zero-stack, tapered head tube also puts strength where the load is going—into the lower headset cup—maximizing bearing durability where it’s needed.
- Tubeless Compatible Rims
Tubeless rims allow for tires with more puncture resistance; the ability to run lower tire pressure, which provides better tire grip on the trail; lower rolling resistance; and weight savings over traditional tube and tire systems.
- 27.5" Wheels
The benefits of the 27.5-inch wheel are simple: they roll over obstacles and track better than 26-inch wheels, but are more maneuverable and nimble than 29-inch ones.
Occasionally, without notice, manufacturers change product design and/or specifications.
Frame | Kona Race Light 6061 Aluminum Butted |
Fork | RockShox Judy Silver TK Solo Air 100mm |
Headset | FSA No.57B |
Stem | Kona XC |
Bars | Kona XC/BC Riser |
Front Brake | Shimano RT10 180mm (centerlock) |
Rear Brake | Shimano RT10 160mm (centerlock) |
Brake Lever | Shimano MT201 Hydraulic |
Rear Mech | Shimano Deore |
Shifters | Shimano Deore |
Speed | 11 |
Rims | WTB ST i27 TCS 2.0 |
Front Hub | Formula 100x9mm (centerlock) |
Rear Hub | Shimano 135x10mm (centerlock) |
Spokes | Stainless Black 14g |
Front Tyre | Maxxis Forekaster 27.5x2.35" |
Rear Tyre | Maxxis Forekaster 27.5x2.35" |
Seat Post | Kona Thumb 31.6mm |
Saddle | Kona XC |
Chainset | FSA Alpha Drive 1x |
Bottom Bracket | FSA 7420 73mm |
Chain | KMC X11 |
Cassette | Shimano Deore 11-51T 11spd |
Kona Blast 2021 Sizing
Frame Size |
Height (cm) |
Height (feet) |
S |
152 – 170 |
5’0 – 5’7” |
M |
157 - 175 |
5’2” – 5’9” |
L |
175 – 180 |
5’9” – 5’11” |
XL |
180 – 196 |
5’11” – 6’5” |
Kona Blast 2021 Geometry
SIZE |
S |
M |
L |
XL |
ST LENGTH |
370 |
420 |
470 |
530 |
TT LENGTH |
572 |
600 |
628 |
667 |
REACH |
415 |
440 |
465 |
500 |
STACK |
585 |
599 |
608 |
622 |
STANDOVER |
710 |
719 |
725 |
748 |
HT ANGLE |
68 |
68 |
68 |
68 |
HT LENGTH |
100 |
115 |
125 |
140 |
ST ANGLE |
75 |
75 |
75 |
75 |
CS LENGTH |
435 |
435 |
435 |
435 |
BB DROP |
50 |
50 |
50 |
50 |
BB HEIGHT |
305 |
305 |
305 |
305 |
WHEELBASE |
1109 |
1139 |
1168 |
1208 |
FRONT CENTER |
678 |
709 |
737 |
778 |
FORK LENGTH |
490 |
490 |
490 |
490 |
FORK OFFSET |
42 |
42 |
42 |
42 |
What size frame do I need if I am between sizes? - read here
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