Unno Bikes has up to date their long-travel Burn mountain bike, opting to interchange the 27.5″ with a mixed-wheel dimension platform. Whereas the earlier Unno Burn ran 160mm rear wheel journey delivered through a twin-link platform optimized to be used with air shocks, the brand new mullet configuration with its VPP-linkage has larger versatility, with a leverage curve capable of accommodate each air and coil shocks.
2022 Unno Burn
- Intention: Enduro and Bike Park Using
- Wheel Dimension: Mullet (29″ Entrance, 27.5″ Rear)
- Fork Journey: 170mm
- Rear Wheel Journey: 160mm
- Dimension Vary: S1-S3 (Attain 435mm-510mm)
- Beginning Value: 7,995€ for Race Spec
Like all Unno Bikes, the 2022 Burn was developed in Barcelona with enter from ex-world cup racer Cesar Rojo. Enjoyable reality: it’s named after Mount Blackburn, the very best peak within the Wrangell Mountains of Alaska standing at 4,996 meters. Unno inform us the brand new Burn is designed to be ridden arduous, with an aggressive set of geometry figures and double-row 7mm EnduroMax bearings caring for articulation at every pivot of the linkage.
The body is strikingly totally different to its predecessor. With the shock now mounted low within the body, it sits inside not one, however two shock tunnels; the primary is an everyday shock tunnel fashioned by a cut up within the seat tube, whereas the second is created by two extra struts of carbon fiber that bridge from the underside bracket space to the highest tube, bracing the entrance triangle within the route that the shock is pushed because the bike is pushed by its 160mm of rear wheel journey.
Appears to be like acquainted? That’s as a result of it’s; the Unno Boos eMTB makes use of the exact same VPP linkage design and body structure.
The brand new structure appears to be like to position extra weight nearer to the underside bracket area, and additionally it is mentioned to ship a leverage curve that’s extra amenable to the linear charge of a coil shock. Unno have examined coils shocks from Fox, RockShox and Ohlins, all of which match with enough clearance. Although the linkage could seem extra difficult than the twin-link seen on the earlier Burn, it’s nonetheless simply that, with two co-rotating hyperlinks, the decrease one among which now articulates a couple of pivot that’s concentric to the underside bracket.
What about geometry? Properly, with the headtube sat at 64° supporting a 170mm journey fork, the Unno Burn doesn’t seem like messing about. Chainstays are available in at 445mm, constant throughout the S1-S3 dimension vary, with the enhance (12mm x 148mm) rear-end capable of accommodate a most tire dimension of 27.5″ x 2.6″.
The underside bracket drops 30mm from the axle of the 29″ entrance wheel, and 10mm from the axle of the 27.5″ rear. Seat tube angles are quoted as 76.5° (efficient) for all three body sizes. For the S2, that angle was measured at a saddle top of 750mm.
The attain determine was the figuring out issue for the scale vary; the S1 has a attain of 435mm, the S2 a attain of 470mm, whereas the S3 is available in at 510mm, accomodating rider heights from 160cm to 200cm tall. These figures are generously lengthy and bang updated, however with solely three body sizes overlaying that big selection, there could also be numerous people discovering themselves in no man’s land, so to talk.
The low-slung prime tube gives the look that seat tube lengths are fairly lengthy. And, nicely, they’re, coming in at 435mm on the S1, 465mm on the S2, and 490mm on the S3. Most seat publish insertion lengths are quoted as 235mm, 250mm, and 280mm, respectively. That’s a good chunk longer than comparable VPP-linkage mixed-wheel bikes available on the market that sit inside this journey bracket.
The brand new Burn will get built-in downtube storage beneath what appears to be like to be the bottle cage mounting panel; we’re searching for affirmation on that, however it does seem like the entrance triangle ought to have the ability to home a full dimension water bottle right here. It comes with a zippered pouch in an try to preserve contents from rattling round an excessive amount of.
The Burn runs a IS52 – ACROS Aix540, permitting cables to run immediately into the headtube, fairly than flapping across the sides earlier than getting into additional again. The cockpit has a reasonably glossy, clean-looking aesthetic because of that inside cable routing and the built-in bar-stem within the type of the carbon Deux Enduro Bar. It comes at 800mm extensive, has a 20mm rise with a 40mm attain.
Pricing & Availability
The Unno Burn might be obtainable in dimension S2 solely in round 3 weeks time, with dimension S1 and S3 due in August 2022. Just one construct mannequin is accessible proper now; that’s the Race Spec retailing at 7,795€ inc. VAT. That money will get you a Fox 38 Manufacturing facility Fork with GRIP2 damper, Fox X2 Float Manufacturing facility Shock, SRAM GX AXS drivetrain, Method Cura 4 brakes, Crankbrothers Synthesis Alloy Wheelset and Fox Switch dropper. For full particulars on pricing and availability, head to the Unno Bikes web site.