HERB 204 Flow – 2016

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HERB-204-Testbanner-V01

Features

The HERB 204 FLOW gives you all the confidence you need from a downhill bike. Exceptional frame, paired with components carefully choosen to find the right mix of performance, slick appearance and weight. The heart of this bike is the HERB 204 frame offering 204 mm travel with a slim and leightweigt chassis. The suspension system is arranged as a single pivot – for less flex between main pivot and rear axle. The rocker system provides kinematic characteristics that reveal great small bump sensitivity, exceptional control in mid travel and superior end of stroke progression. The Boxxer RC and the Kage RC both feature rebound and compression adjustability to give you well defined feedback from the ground and control.

The photos shows an older spec which has been replaced with the here described 2016 spec:

  • new HERB 204 frame (V5) with floating, rocker activated shock, adjustable geometry, custom butted 7000 series lightweight aluminium tubing, sealed bearings with additional LAST Labyrinth system, 12 mm through axle with switchable 150/157 mm rear options
  • Rock Shox Kage RC coil shock offering rebound and compression adjustability
  • Rock Shox Boxxer RC offering rebound and compression adjustability
  • Sram X9 Type 2 dereilleur for a silent ride
  • Truvativ Descendant cranks with PF30 bottom bracked and 36T chainring
  • Sram Guide R 4-piston brakes – powerfull and slim
  • Kore Torsion 800 mm wide handlebar, very well shaped, combined with a Kore Repute stem to reduce harm on the bike and yourself when crashing, therefore no direct mount
  • Maxxis High Roller II DH, Super Tacky, 42a, 26 x 2,4“ the reference tire for DH
  • wheelset based on DT Swiss 350 hubs, Alexrims Supra30 rims, in house build with double butted spokes and DT Swiss Squorx ProLock Nipples

 

Spec

The photos above show an old spec which has been replaced with the here described 2016 spec:

ModelHERB 204 FLOW (2016)
frameHERB 204 (V5)
sizessmall, medium, large - for pictures of small and large frames see frame page
shockRock Shox KAGE RC, 240x76 mm
optional shocksRock Shox Vivid R2C, Vivid Air, Cane Creek Double Barrel Coil
shock top hard ware30,0 x 8 mm
shock bottom hard wareLAST specific spacer, 12,7 mm diameter, requires spacers of the 22,2 mm Rock Shox hard ware
forkRock Shox Boxxer RC, 200 mm, matte black
head setCane Creek 40 Series
stemKore Repute 50 mm (35 mm option available)
handle barKore , Torsion, 800 mm wide, 20 mm rise, black
gripsKore Rivera, lock on, closed aluminum cap
brakesSram Guide R, 200 mm front, 200 mm rear
derailleurSram X9 Type 2, short cage
optional derailleurSram X01 DH, Type 2, short cage
shifterSram X9 Trigger, 10 speed
cassetteSram PC-1050, 10 speed, 11-26 T
crank and bottom bracketTruvativ Descendant PF30, 165 mm. 36 T
chain deviceMRP G3 Mini
rimsAlexrims Supra30, 32 hole, welded, black
optional rimsAlexrims Supra35, DT Swiss EX 471
spokes and nipplesDT Competition, 2,0 x 1,8 x 2,0
hubsDT Swiss 350 Series
tiresSchwalbe Magic Mary, SuperGravity, 26 x 2,4“
seat postKore, OCD, 31,6 x 350 mm, black
optional seat postRock Shox Reverb Stealth, 150 mm adjustabe, 31,6 x 430 mm
seatKore Frazer SL, black
seat clampbolt clamp
pedalsnot included
weight16,6 kg
The information presented here is subject to change without notice.

Geometry
SizeSML
example forkRock Shox Boxxer 2013 Rock Shox Boxxer 2013 Rock Shox Boxxer 2013
fork travel200 mm200 mm200 mm
fork length + head set height568 + 3 mm568 + 3 mm568 + 3 mm
top tube (reach)347 mm382 mm428 mm
top tube sloped478 mm507 mm547 mm
stack height609 mm609 mm609 mm
chain stay length445 mm445 mm445 mm
steering angle63,5° +/- 0,5°63,5° +/- 0,5°63,5° +/- 0,5°
seat angle (actual)61,4°61,4°61,4°
seat angle (effective72°72°72°
head tube length130 mm130 mm130 mm
wheel base (42 mm fork offset)1142 mm1177 mm1223 mm
seat tube length380 mm380 mm440 mm
bottom bracket height14 mm +/- 2 mm14 mm +/- 2 mm14 mm +/- 2 mm
The information presented here is subject to change without notice.

Frame Spec

Active Suspension Design

Linkage operated shock combined with a single pivot rear triangle. The linkage designs generates a linear beginning and mid stroke kinematics with progressive end of stroke ratio. This suspension characteristic is the optimum for excellent performance when not only suspension performance but also feedback from the bike counts. This characteristics gives you a better feeling for the bike and the ground, allowing to push through wobbles and to jump easily. We think the main suspension characteristics should be a result of the kinematics and not of the shock. Another important point is the pivot placement. Pivot palcement mainly affects two things, wheel path and pedaling efficiency. Most hits on the rear wheel come from the bottom and from the front. Therefore it is desireable to have an upwards and rearwards wheel path. Generally this is difficult to achieve with any type of suspension design. Old school high pivot realize this quite well, but they are no option because of the pedal force inducing movements of the suspension. Our single pivot design, i. e. no additional pivot between the main pivot and the rear axle, provides a better wheel path than most other designs. The pivot placement – relatively high and before the bottom bracket – is crucial for that. This design results in a little extra weight, but increases the suspension performance noticeably. Finally we believe that any additional pivot between the rear axle and the main pivot would reduce the stiffness of the frame and thus reduce it´s overall performance.

Active Suspension Design

 

Adjustable geometry and new shock length

With tracks getting faster the geometry has been adapted to provide more stability at higher speeds. In this process the fifth evolotion of the HERB downhill frame got lower and slacker. Nevertheless we wanted to give riders the choice between a race optimized geometry (low setting) and a more relaxed and playfull geometry (high setting). To avoid additional mounting holes for the geometry adjustment, the geometry adjuster is realized in the way of an excentric mounting hardware for the lower shock mount. With the new lower shock mount system we were also able to ease the shock installation noticeably. Mounting the shock to the chainstays creates a floating shock suspension system. The characteristics of the suspension remained similar to the previous V4 version, but shock stroke was inceased. We want to point out that a floating shock is not an advantage by default – all important are only the cinematics. In this case we decided for the floating version, because it incorporates the shock mount in an elegant way and allowed us to use the longer 240 mm shock.

Adjustable Geometry

 

C-Plus Bearings and LAST Labyrinth System

Full complement bearings are used on most pivots. The additional balls provide a higher load capacity (C0 and Cdyn). The higher load capacity leads to greater stiffness and durability. All bearings are cartridge type industrial grade bearings with two seals. To protect the bearings against corrosion, we created the LAST Labyrinth System, which protects the bearings in form of a labyrinth seal – reducing the impact of high pressure water cleaners. The advantage of the labyrinth seal is that it is frictionless. The labyrinth seal allows water to evaporate, it does not capture the water as rubber seals do with water that went into the system. The system provides lube ports where you can spray oil, which will superseed the water and protect the bearing.

LAST Labyrinth System

 

Next generation 7000 series custom butted aluminum frame

The frame is designed without gussets because we use our very specially butted tube set. This design provides a clean look and supports the frame in highly stressed regions. Wall thickness on the rear triangle is specific for left and right side to handle brake and chain pull forces. Combining the simple and thoughtful design with the tube technology creates a very lightweight frame.

 

Kappa Surface

The surface of the welded and heat threated frame is ball burnished with balls of a specific size in order that the surface of the frame material is compressed. This compression leads to compression stress in the material. The compression stress changes the load factor Kappa, which leads to longer life of the frame structure.

 

Double Dropouts

On this frame you can install two different rear axle systems, all through axle systems. The standard version is 157×12 mm, the option is 150×12 mm through axle. To switch between the systems simply change the derailleur eye and the insert on the disc brake side. The disc brake mount is a direct PM180. The dropout is threaded to reduce the weight caused by inserts. Should you damage the threads – the frame is prepared to use inserts, effectively taking away the risk normally caused by threaded postmounts.

Double Dropouts

 

Frame Standards and Dimensions

ModelHERB 204 (V5)
sizessmall (150 - 170 cm), medium (168-180 cm), large (178 -198 cm)
coloursblack anodized frame, blue anodized linkage and hardware
material7005 aluminum, custom butted, heat threated and ball burnished for less fatigue
rear travel204 mm
max. fork travel200 mm
shock eye to eye240 mm
compatible shocks 1Rock Shox Vivid R2C, medium compression tune recommended
compatibel shocks 2Rock Shox Kage RC, medium compression tune recommended
compatible shocks 3Rock Shox Vivid Air R2C, medium compression tune recommended, no volume reduction
compatible shocks 4Cane Creek Double Barrel Coil
compatible shocks 5Fox DHX RC4
compatible shocks 6If you discover a damper to fit well in our frame feel, please feel free to let us know, so we can share the information with others on this site.
shock hardware, top30,0 x 8 mm
shock hardware, bottomspacers for 22,2 mm mounting width and inside diameter 12,7 mm, plus LAST specific spacer set with 12,7 mm diameter
seat post size31,6 mm diameter
seat post clamp size34,9 mm diameter
adjustable seat post guidesoptional triple clamp cable guide on the downtube, entry for stealth type posts above the bottom bracket
bearingssealed cartige bearings, some bearings are full complement bearings
bearing sizeslink and rockers 15 x 28 x 7 mm, main pivot 17 x 30 x 7 mm
head tubetapered style, 44 mm top, 56 mm bottom, entirely CNC machined
head set sizesemi integrated, 44 mm top, 56 mm bottom
compatible tire sizes26" up to 2,5-2,7" depending on tire and rim combination
disc mount standardPost Mount 180 mm, use adapters for 200 / 203 mm rotors
bottom bracket standardPressfit PF30, 83 mm
chain device mountISCG 2005, flush with bb shell face
front derailleurno option
rear axle12 mm through axle, included
hub width157 mm standard, optional 150 mm with dropout insert and special derailleur eye
frame weight 3798 g (S), 3855 g (M), 3962 g (L), incl. mounting hardware and rear axle
The information presented here is subject to change without notice.

Setup Guide
Spring Stiffness

[LBS/inch]
Ideal rider weight

[kg]
25048
30058
35067
40077
45087
50096
550106
600115

Manuals

HERB 204 frame and bikes – User Guide – english and german (PDF-Document)

A full list of available manuals can be found here.

 

Press and Reviews

Freeride Magazine 02/2013 (Germany) – 9,5/10 Points

Read here what Freeride Magazine writes about the HERB 204.

Translated:

“The HERB-rear suspension impressed us from the start with extremely sensitive response in combination with enormous abilities to absorb shocks, without undefined wobbling through the travel. The rear wheels is always at maximum grip, despite this dynamic pushing off the ground is possible and gropund feed back is good. Aditionally the rear suspension stays stable and calm when pedalling hard…”

Conclusion: “With the in series Boxxer R2C2 fork the LAST would have got the 10 points straight. For the not optimal choosen fork in this test half a point has been taken off. The rear suspension is excellent, the frame is crafted high grade and the handling is pure fun. Lightweight!”

This is the original quote:

” Der HERB-Hinterbau beeindruckte uns von Beginn an mit extrem feinfühligem Ansprechen in Kombination mit enormer Schluckfreudigkeit, ohne dabei undefiniert im Federweg rumzuwobbeln. Das Hinterrad hat immer maximalen Grip, trotzdem kann man sich dynamisch vom Boden abdrücken und bekommt gutes Feedback. Zusätzlich bleibt das Heck im Antritt ruhig und stabil im Hub…”

Fazit: ” Das LAST wäre mit der serienmäßig verbauten, dynamischerer Boxxer R2C2 eine glatte 10. Für die im Test nicht ganz optimale Gabelwahl gibt es einen halben Punkt Abzug. Der Hinterbau ist super, der Rahmen sehr hochwertig gearbeitet und das Handling macht einfach Spaß. Leicht!”

Freeride Magazine measured the HERB 204 RACE on test, with optional Boxxer Worldcup fork, ZTR Flow EX rims and Avid XO Trail brakes at 16,1 kg.

Our take on the test result:

With regard to the rear suspension there is hardly anything to ad because Freeride revealed in their test exactly what we claim. The problem of forks not matching the performance of the rear suspension is something we notice regularly. The front suspension incorportaes sliding friction while the rear suspension benefits from the lower rolling friction created by using ball bearings. Additionally the spring rate for the front is much lower, giving the friction forces much more impact on the performance. While the Boxxer Worldcup offers the advantage of infinite adjustability of the spring rate, under certain circumstances the R2C2 may be the better choice. Every Boxxer model can be fitted to our complete bikes, giving you the choice to get what works best for you. Individual fork and shock tuning is available in cooperation with Flatout Suspension. JF

 

World of Mountainbike 01/2013 (Germany) – Testcrew Favourite – Liebling der Testcrew

Testcrew Favourite Read here what World of Mountainbike writes about the HERB 204.

Translated:

“The geometry gives a feeling of safety, the bike feels low and long and one feel´s well integrated in the bike. “Comfortable from the start”, that´s what how one of our testers described it. … Striking is how guiet the HERB is, while the other test bikes could be noticed already from long distances. Also by means of it´s low weight the LAST is easy to jump, can be circled actively through corners and it is easy to manual. The components work flawless without exception, the Avid XO-Trail-4-piston brakes performed great.”

Conclusion: “A balanced and lightweight racebike with pleasant handling and absolute top suspension.”

This is the original quote:

“Die Geometrie vermittelt viel Sicherheit, das Rad wirkt lang und tief, und man fühlt sich gut ins Bike integriert. “Draufsetzen und Wohlfühlen”, so beschrieb das einer unserer Tester. … Auffällig ist, wie leise das HERB unterwegs ist, denn andere Räder hörte man schon aus großer Entfernung. Auch durch das geringe Gewicht geht das LAST gut in die Luft, lässt sich aktiv durch Kehren zirkeln oder in den Manual ziehen. Die Ausstattung funktioniert ohne Einschränkungen hervorragend, eine tolle Performance lieferten die Avid-XO-Trial-Vierkolbenstopper.”

Fazit: “Ausgewogenes leichtes Racebike mit angenehmem Handling und absolutem Topfahrwerk.”

Our take on the test result:

All we can say is, thanks for choosing our bike as “Testcrew Favourite”! JF

The full test featured in World of Mountainbike 01/2013 can be downloaded here (PDF-Document).

In Action

 

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