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  • Jones Bikes
  • (541) 535-2034
  • 1010 Benson Way Ashland, OR 97520 USA

About us

My name is Jeff Jones. I'm a cyclist committed to the non-suspended bicycle. My ideas and passion have created an exceptional ride - a trail-blazing geometry that delivers superb handling, comfort and efficiency. My bikes are available in titanium and steel, to be ridden off-road (and on) for exploring and racing, adventures and fun. They are outrageously responsive bicycles - frame and forks designed in harmony to provide a rigid bicycle that is anything but. A pure cycling experience like no other.

Jones Steel Plus SWB Diamond frame with Unicrown Fork

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We are currently out of stock of the Jones Steel Plus SWB Diamond frame with Unicrown fork.  

If you would like to be notified when they are back in stock please put your email address in the notification box on this product page. You will receive an automated email when they are back in stock. Currently we are not accepting pre-orders or back orders. 

We estimate the Jones Steel Plus SWB Diamond frame with Unicrown fork  will be back in stock Spring 2022. (update: October 31, 2021)

Prices are subject to change.

The Jones Plus SWB brings the benefits of 27.5" Plus tires to the proven Jones 29 geometry to create a new kind of Jones Plus!  This is the first revision to the original Jones 29 frame geometry in about 10 years, and it combines aspects of the Jones Plus LWB and the original Jones 29 to make a short wheelbase bike with clearance for larger tires, new hub spacing, more bosses, and slight geometry tweaks.  The result is a bike that maintains the agility for which the Jones 29 is known, while adding stability, and more wheel options!  

To see the breakdown of the differences between the Jones 29 and the Jones Plus SWB, check out the chart here!    

This is a frame, fork, Jones EBB (bottom bracket), front and rear TA bolts, water bottle bolts, clips, and standard derailleur hanger.   

Jones Steel Plus SWB Diamond frame with Unicrown Fork

Frame Features include:

  • Jones Plus SWB geometry for an great ride in a wide range of conditions
  • Can be built up as an exceptional mountain, road, gravel, touring, bikepacking, commuting, or just about any other type of bike you'd like
  • Frame and fork designed to work together
  • Not suspension corrected for a larger, stronger front triangle, shorter, stronger fork and greater frame pack/ water bottle capacity
  • Clearance for 27.5 x 3" or 29 x 2.3-2.6" tires
  • Full rack and fender mounting bosses
  • Three water bottle mounting locations, two of which can accomodate triple-boss style
  • Low-mount rear disc brake mount for ease of mounting fenders and racks

Frame Specs

  • 68mm BSA threaded bottom bracket shell (the most common bottom bracket standard)
  • Compatible with 1x or 2x "Boost" cranks
  • Three rack and fender eyelets on and near the rear dropouts
  • Full fender bosses on the seat and chainstay bridges
  • Rack bosses on upper seatstays
  • Standard 148x12mm thru-axle "Boost" rear hub spacing
  • Triple-boss cage mount underneath the downtube
  • One triple-boss cage mount on the top of the down tube near the bottom bracket (use it to for a standard two-bolt bottle cage, or a three-bolt cage)
  • One standard two-boss mount closer to the headtube
  • Chainstay-mounted I.S. rear disc brake mount for stiffness and ease of mounting fenders and racks
  • 27.2mm seatpost size
  • 31.8mm seat tube diameter
  • Standard 1 1/8" headtube for external bearing headsets such as the Jones H-Set
  • Available in black
  • 2865 grams / 6 lbs 5 oz (with EBB, bolts, axle, derailleur hanger)

Frame Construction

  • Custom butted and heat treated 4130 Chromoly tubing
  • Tig welded
  • Brazed-in water bottle bosses
  • Welded rack mounts
  • Tapered and butted top tube for extra stiffness and strength
  • Super simple, lightweight, creak-free, and durable custom pinchbolt-style bottom bracket shell with Jones EBB and fully replaceable stainless steel hardware
  • Coated with ED Black for rust resistance and smooth coating underneath the paint
  • Replaceable derailleur hangers available for single speed, standard, and Shimano DMD

Jones Plus SWB Unicrown Fork

Fork Features include:

  • Lots of mounting options: three bosses on the outside of the fork for either a triple boss cage, a normal two bolt bottle cage or a bottle cage and rack
  • Stainless steel rack/bottle boss bolts with integrated washers included 
  • Full fender mounts
  • Less expensive than a Truss Fork
  • Easier to install and remove
  • Frame and fork designed to work together
  • Also compatible with Jones 29 frames
  • Clearance for 29 x 2.3-3.25" or 27.5 x 3.8" tires with great clearance
  • Clearance for 26 x 4.8" tire on 80mm rim with minimal clearance
  • Standard 150x15mm thru-axle (standard fat bike) front hub spacing, which is compatible with dynamo hubs for fat bikes
  • Lowrider rack mounts (designed for Tubus Duo Rack)
  • Two bosses on each dropout for a fender or rack

Fork Specs:

  • Crown is drilled for 6mm bolt (for fenders, racks, baskets, headlights, etc.)
  • Standard 1 1/8" steerer tube
  • Uses a standard 1 1/8" headset with a press-on crown race
  • 300mm steerer tube length
  • Fork length: 435mm
  • 55mm of offset for the Jones Plus SWB geometry
  • 150 x 15mm fatbike standard thru-axle dropout spacing
  • 1445 grams / 3 lbs 3 oz (with bolts)

Fork Construction:

  • All heat treated Chromoly construction
  • Tig welded
  • Custom butted and tapered Chromoly legs 
  • One-piece, internally butted, externally CNC machined Chromoly steerer tube
  • Custom CNC machined Dropouts
  • Welded-on rack and fender mounts at the dropouts
  • Brazed-in bosses
  • Coated with ED Black for rust resistance and smooth coating underneath the paint

For more information check out these blog posts:

The Jones Plus SWB is Coming!

The first two Jones Plus SWB bikes are built, and we have photos!


Sizing information:

• Medium-  Rider height  5'7" - 6'2", Standover at center of top tube is 30.5"



All sizes of the Jones Plus SWB have a 69° head tube angle, and a 72° effective seat tube angle.  The chainstays are 17.68"/449mm from bb to axle center.

Wheel base: medium: 42.98"/1091.72mm


EBB versatility
The eccentric bottom bracket (EBB) allows you to adjust chain tension for single speeds and gear hubs, or to change your bottom bracket height to suit your preference for differing terrain or wheel sizes.  

Tire clearance
The Jones Plus SWB has enough is designed to be used with either 27.5 x 3" or 29 x 2.3-2.6" tires.  It has lots of clearance with these tires.  If you live in a place where clearance isn't much of an issue (a dry environment, for instance), and want to run something larger, in the rear, we have found that smaller 29x2.8-3" tires will actually fit with reasonable clearance—but much less than we'd like for even slightly muddy conditions.  Before riding any tire over 29 x 2.6" in the rear, make sure it has enough clearance for the conditions in which you ride and remember that a loose hub or wheel that is out of true can take up extra clearance quickly!

If you're interested in a complete bike or rolling chassis, please send us an email or give us a call.