The Jones 23" (Jones Small) Spaceframe Plus 148 TA frame and fork set is here to allow riders under 5' 7" to get the benefits of the larger 29+ tires!
Are you interested in a complete bike or rolling chassis? Please sign up on the waitlist for Custom Select.
The size small Jones Plus Spaceframe brings the great handling, rollover capability, and comfort of the Jones Plus in a small frame with great standover clearance for smaller riders. It has the same 148x12mm thru-axle (boost) rear end, 150x15mm thru-axle hubs--which allow you to use generator hubs designed for fat bikes--and three water bottle bosses on the downtube to allow you to mount three-hole bottle cages. This is also the first Jones frameset to come with our newly-designed thru-axles! Jeff wanted to pare-down the thru-axles he used to the minimum by simplifying them as much as possible to make a system that is as reliable, light, and durable as possible. The result is the Jones TA Bolt. It works just like a standard quick release thru-axle, but instead of just threading it in until it's tight enough to clamp the quick release, you just tighten this one until it's tight, using a 5mm allen wrench. Jeff says it reminds him of tightening the wheels on his bike as a kid, and he is really happy with how positive and solid the connection feels.
The Jones Plus has shown us how versatile one bicycle can be, and has opened up new territory for many riders; this version updates the axle-spacing to expand the chain-to-tire clearance in the rear--allowing us to use the latest 11 speed drivetrains with the biggest 29x3" tires--and open up the fork to fit the new crop of 150mm generator hubs, making this a truly unbeatable bikepacking rig! Whether you want a bike to ride around town with more comfort than you would have thought possible, to shred your local singletrack, or to ride to the ends of the earth, this just might be the one!
Available in Black, Red or Gray (Cool Gray 7 U). All colors feature an ED Black underlayer to protect the frame from rust, and a matte clear coat.
This is a frame, fork, EBB (bottom bracket), front and rear TA bolts, water bottle bolts, clips, and standard derailleur hanger. If you would like a single speed hanger, get one here! The Black and Grey frames have an expanding EBB. The Red frames have the pinch-bolt type bottom bracket shell and use the Jones Eccentric Bottom Bracket. The Red frame also has rack mounts bosses on the seat stays. If you would like to use a rear rack on the Black or Grey frame, the Problem Solvers Seatpost clamp with rack mounts is a great solution.
In the first blog post about the Jones Plus, Jeff says, "I did not design this bike based on market research, a reaction to what other people were making, or because people were suggesting I make ‘this’ bike or ‘that’ bike – their idea of what I should do next. I made this bicycle because I wanted it and I think many others will love it too. I realized that I do not need or want a bike that has the absolute shortest wheel base possible for every ride, and I knew that you don’t need to have a steep head or seat angle to have a responsive bike that is fast, efficient and comfortable.
I designed my 29er bike years ago with a slacker seat tube angle, slacker head tube angle, shorter reach, lower BB and more fork offset than what was considered correct and normal at the time. I did this for a better ride based on what I had learned, not because it was popular. Nowadays many 29ers have more fork offset and slacker seat tube angles etc. Some have even branded and marketed this change in geometry… I never named my geometry, but if I did, let’s call it “JJ1 Geometry”, then this Jones Plus has “JJ2 geometry”. I spent hours working on it – centering the rider, considering the BB height, the angle and offsets, the rake and trail – the ride is everything.
People might try and simplify it – “it’s just a long wheelbase Jones with 29+ tires” but it isn’t. It’s so much more. It is NOT slow handling. I’ve done so much work to make it still ride the way I want a bike to ride. Hours of geometry drawings and thinking. Notes and testing. This is really even more of a ‘rigid specific geometry’ for a ride that is much more comfortable and stable yet still with very quick handling. It is balanced in a way you wouldn’t expect. It’s big but feels right. You ride very much in this bike. There’s no roughness, no “I’m gonna crash” sensation or fears. It’s just smooth! And it climbs. If you stand there’s no wheelie. It’s planted. It delivers excellent traction and a huge sweet spot (and I don’t mean the tire contact area – I’m talking about the big space for the rider to move around (in the bike) and still have their position, the grip and the power transfer working for them).
The Jones Plus is a bike for riding fast, slow, the rough with the smooth; safely, aggressively, laid-back or raging; with a big load or stripped to the bare essentials; on road, dirt, mud, snow; in the mountains, on the flat lands, around town or across the county; around the world or your local loop; for getting rad or just getting away. It sets a new standard for bikepacking yes, but it’s so much more than that – it’s a bike for technical trails and big trips. It really does it all. I’m really excited by this bike. It’s good."
Jones small Spaceframe Plus 23” effective top tube, fits 29” and 29+ tires
Unique Jones Geometry frameset – frame and forks designed together as one
- EBB For geometry adjustment and single speed chain tension. Black and Grey frames use an expanding EBB. Red frames have a pinch bolt bottom bracket shell and use the Jones EBB
- 68mm bottom bracket width
- Steel Spaceframe and Truss fork-excellent standover clearance
- Heat treated 4130 cromo (steel)
- Jones TA bolts front and rear Simple, reliable, light, and low-profile (front weighs 50 grams; rear weighs 41 grams)
- Excellent clearance for 29+ tires (10mm+ clearance either side with a 29+ tire – with 29er tire you can get a palm in between the tire and stays)
- Ample chainring/stay clearance
- 148mm TA rear end-increased chain/tire clearance allows you to use all 11 speed drivetrains with the widest 29x3" tires.
- TIG welded – brazed on cable guides, bottle, rack and fender bosses.
- Rear rack and fender mounts for the best rack/fender/tire size fit (extra bosses allow you to have the rack at a height to suit the tires/wheels) so very versatile and accommodating of different equipment and different set-ups. Red frames have rack mounts on the upper seat stays while the Black and Grey frames do not.
- 2 bottle mounting locations: Black and Grey frames have 1 standard bottle mount on top of the downtube, and 1 triple boss mount underneath the downtube. Red frames have a triple boss mount on the bottom and top of the downtube.
- Jones Truss fork – comfortable, precise handling, no brake stutter
- 150mm thru-axle front hub spacing – for more front wheel stiffness and strength and compatibility with the latest generator hubs
- Fork accommodates 29, 29+, 27.5 x 3.8" and 26 x 4.8” tires
- Size small Spaceframe with Truss Fork, EBB, thru axles, water bottle bolts, clips, derailleur hanger weight: 4555 g
- Rider height between 5' and 5'8" would fit the small Jones Spaceframe Plus 148 well. Standover is approximately 26.5".
- Rider height between 5'7" and 6'2" would fit the medium Jones Diamond Plus 148 well. Standover is approximately 31.5".
- Rider height between 6' and 6'6" would fit the large Jones Diamond Plus 148 well. Standover is approximately 33".
The frame has a 67.5 degree head tube angle with 76mm of fork rake/offset for a short trail measurement so the handling is quick even with such a slack head angle. This is twice as much fork rake as many 29ers had. The 71 degree seat tube angle can be used with a straight seatpost and will give a similar seating position as the 72 degree seat tube angle with a set back post on a Jones 29. Tall riders or riders that want to sit further back may want to use a set-back seat post. The chainstays are 19″.
This new 23" Plus size works out having an even shorter effective top-tube than the Jones 29 (which has a 23" top tube as well) because of the Plus's slacker seat tube angle. For reference: if it had the same seat tube angle as a Jones 29, it would actually work out as having closer to a 22" top tube, which is just to say that it's shorter and smaller, even though the top tube length is stated as the same length. This short reach, combined with the low standover of the Spaceframe design, brings the inspired ride of the Jones Plus to smaller riders who wouldn't have enough standover on the Diamond frame design. A short wheel base is not the only way. Long has many benefits.
The eccentric bottom bracket (EBB) ensures the Bottom Bracket BB height is adjustable. When using the smaller 29″ wheels (tires) you put the BB at the top of the EBB to keep the BB height the same as when you have taller 29+ wheels and the BB at the bottom of the EBB. You can also run the BB at the bottom for a extra low BB with 29″ wheels, or run the BB at the top with 29+ wheel for a higher BB. BB drop: BB in top position – 76mm, BB in bottom position – 88mm.