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SixFifty 680+

The KHS SixFifty 680+  is our high end performance hardtail XC sport bike that embodies the next level of 650b’s in XC performance.

Featuring the lightweight KHS patented alloy 6061 frame. The 680+ over exceeds the highest level of stiffness, compliance and durability in it’s class. Thanks to cutting-edge design and engineering from the KHS development team. The 680+ features an advanced geometry for superior control and premium components that delivers and over exceeds competitive XC 650b’s in it’s class..

It’s built for speed and agility for rough singletracks, XC races and off roading. Tubeless Ready wheels makes it a great choice for racers, fast singletrack riders, and anyone who wants to ride on all day adventure without breaking the bank.

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[vc_custom_heading text=”“Our KHS SixFifty 680+ was specifically designed and engineered for efficient climbing and acceleration on XC terrain while improving off roading performance. Our patented alloy 6061 precision constructed frame and geometry boasts of the best hardtail technologies that will win anything from marathons to epic adventures in the wilderness“- Quinton Spaulding” font_container=”tag:div|font_size:40px|text_align:center|line_height:40px” google_fonts=”font_family:Oswald%3A300%2Cregular%2C700|font_style:400%20regular%3A400%3Anormal”]
[vc_custom_heading text=”KHS SixFifty 680+ FEATURES” font_container=”tag:div|font_size:40PX|text_align:center|color:%23000000|line_height:40PX” google_fonts=”font_family:Oswald%3A300%2Cregular%2C700|font_style:700%20bold%20regular%3A700%3Anormal”]
FSS 650B 120mm ALLOY 6061

Engineered and designed with only one thing in mind: FAST! 

Light enough frame for speed but strong enough to handle any downhill terrain. Re-engineered and redefined for the 650b frame geometry.

KHS passion for precision engineering and design presents you their advanced technology of materials with this patented XC 650b sport frame

Manitou Magnum Comp, Air, 650B, 34mm, 120mm

Perfectly integrated with the KHS SixFifty 680+

The Magnum brings the adjustable, bottomless feel of the Mattoc Pro 2 to a wider 110x15mm axle platform. Featuring hydraulic bottom out adjustment, IVA air volume system, and separate high and low speed compression damping circuits, the Magnum provides DH performance in a trail oriented package.

Sun Mulefut 50, 650B, 32H, Tubeless Ready

These rims are perfectly integrated with the KHS SixFifty 680+

There’s a reason we named this wheel after a bad-ass pig – Mulefüt pigs have uncloven hooves similar to a mule. Sort of like this fat bike rim that’s steadfast, durable and able to ramble over anything. The Mulefüt rim is wide enough to handle a big-ass tire and a sizeable tire patch. And, it has strategic cutouts to reduce overall weight.

SRAM GX Champion Components

Incorporating the Championship-winning SRAM GX™ technologies.

GX delivers dedicated, gravity focused 1x performance MTB components. With its main objectives being durability and dependability, GX is the clear choice to bring more riders to the mountain, and the one to keep them coming back for more. SRAM GX —Get Some!


The versatile KHS 680+ XC hardtail has been designed from the ground up for the best off-roading performance one can buy in it’s class. The 650b configuration allows you to ride on oversized tires for bold handling on rough terrain and crazy singletrack trails. It can also be converted into a 29 XC race ready performance bike.

This SixFifty frame design geometry is built for speed. While being perfectly integrated for a 120mm suspension fork.  Boasting wheel stiffness and maximize tire clearance.

Comes equipped with the Manitou Magnum Comp, Air, 650B suspension fork with boost spacing and 120 mm travel to eat up the rough patches and ensure the ultimate tire traction so you can keep your momentum.

The SRAM GX drivetrain gives you the gear ratio and reliability to help you withstand any XC race without having to worry about mechanical DNFs

Get ready to see your climbing times faster. The agile handling of the KHS SixFifty 680+ ride is beyond stable. With the responsiveness that results with quick rapid accelerations and riding down descents that no other bike in it’s class can match.


The KHS SixFifty 680+ is our high end 650b XC bike. Featuring our patented 6061 Alloy frame. Thus making it the best performance lightweight hardtail bike in it’s class. PERIOD!  Offering high-performance and long-term durability. The 27.5 Plus suspension fork with 120 mm travel will smooth out all the big hits and keep the traction so you can keep your speed while helping you climb efficiently without cushioning out any of your pedaling power. Convert it with 29 wheels to make it the top XC race bike on the track. If your looking for a bike that’s offering the capability of swapping 27.5 wheels to 29 wheels with the best top performance components then this is your bike. For more info in why someone would want to choose to swap wheel sizes click here. Click here to check out our SixFifty 600+ bike.

[vc_custom_heading text=”SPECIFICATIONS” font_container=”tag:div|font_size:40PX|text_align:center|color:%23000000|line_height:40PX” google_fonts=”font_family:Oswald%3A300%2Cregular%2C700|font_style:700%20bold%20regular%3A700%3Anormal”]

Frame: 650B Alloy 6061 Double Butted Custom Formed TT & DT w/ Replaceable Derailleur Hanger, 1.5 Taper, 12 x 148 Boost
Rear Shock: N/A
Fork: Manitou Magnum Comp, Air, 650B, 34mm, 120mm, 1.5 Taper, ISO Air, ABS+ Adj Compression to Lock, Ext. TPC Rebound Adj., 15QR Hexlock x 110mm Boost
Headset: FSA Orbit 1.5E, Zero Stack, 1 1/8″~1.5
Rims: Sun Mulefut 50, 650B, 32H, Tubeless Ready
Hubs (F/R): Sealed Bearing Alloy disc w/CNC Rotor Flange, 15mm x 110mm Boost front,Sealed Bearing Alloy Disc XD w/CNC Rotor Flange, 12 x 148mm rear
Tires: Maxxis Chronicle 27.5 x 3.0, 120tpi, Folding, EXO, Tubeless Ready
Spokes: 14G Black w/Alloy Nipples, 32X32
Derailleur, Front: N/A
Derailleur, Rear: Sram GX 1, 11s X-Horizon, Type 2
Shifters: Sram GX 1, 11s Trigger, Right Only
Chain: Sram PC-1130
Crankset: Sram GX 1000 Boost 148, X-Sync, 2 pc., GXP, 30T S: 170, M-L: 175
BB: Sram GXP Outboard Bearing
Cassette: Sram XG-1150, 10-42T, 11-speed
Pedals: Wellgo Alloy ATB 1 pc. w/CNC
Seatpost: Kind Shock E10I, Integra w/Remote, Travel Adj, 31.6 x 420mm
Saddle: WTB Volt Sport
Handlebar: Double Butted Alloy,35mm, 720X15mm, Butted
Stem: 35mm Alloy 3D Forged, 4-bolt, 0-Degree S: 35mm, M: 45mm, L-XL: 55mm
Grips: Q2 Lock-On
Brake Levers: Shimano BR-M396
Brakes: Shimano BR-M396, Hydraulic Disc, 180/160mm Rotors
Color: White
Frame Size: S/15, M/17, L/19


[vc_custom_heading text=”COMMENTS” font_container=”tag:div|font_size:40PX|text_align:center|color:%23000000|line_height:40PX” google_fonts=”font_family:Oswald%3A300%2Cregular%2C700|font_style:700%20bold%20regular%3A700%3Anormal”][vc_wp_text]




[ess_grid alias=”btm XC Sport 29″]

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