COAL

Progressive
Enduro Bike

„More travel, slacker head angle and optimized kinematics. Everything is consistently designed for demanding enduro use. The rear suspension feels plusher without losing support and agility. The COAL is really fun and extends my limits. Our best aluminum frame so far.“

Elias Schul | LAST
COAL
COAL
COAL
COAL
COAL
COAL

The new COAL

The COAL excels at the descend. The suspension is sensitive at the beginning and generates a lot of grip. The middle section is relatively linear. The system therefore remains high in its travel and provides an active ride. This is also the reason why air and coil shocks work equally well. The progression only increases significantly towards the end of the travel and creates a great bottom-out protection.
COAL

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KOMPLETTRAD

from 4,714.00 EUR

RAHMENSET

from 2,499.00 EUR
COAL

Geometry

The geometry of the COAL is clearly designed for demanding enduro riding. The modern reach-to-stack ratio ensures best riding position on the bike. The 63 degree head angle generates a lot of confidence in rough sections and keeps the speed high. The chainstay length increases in size 195 up to 447 mm and ensures very good integration into the bike. For sizes 165 and 175 the chainstays are so short that the lively MX-setup is mandatory. Specified is the geometry with 180 mm fork. Whith a 170 mm fork, the steering angle will be about 0.4 degrees steeper and the reach grows by 5 mm. The full geometry with 170 mm fork will follow shortly.
Geometry
Frame size 165 175 185 195
Suggested rider height 1.65 M 1.75 M 1.85 M 1.95 M
A - REACH 430 460 490 525
B - STACK 619 632 651 669
C - STEERING ANGLE 63° 63° 63° 63.1°
D - SEAT ANGLE (EFFECTIVE) 76.5° 76.6° 77.1° 77.7°
E - SEAT ANGLE 69.7° 70.2° 72.1° 74.2°
F - SEAT TUBE 385 390 430 475
G - CHAINSTAY 430 430 438 447
H - HEAD TUBE 95 110 130 150
I - BB DROP -22 -22 -23 -23
J - WHEELBASE 1214 1251 1297 1350
K - TOP TUBE (TILL INTERSECTION EFFECTIVE SEAT ANGLE) 578 611 639 672
L - STANDOVER 725 726 731 739
M - MEASURING DISTANCE FOR STANDOVER 75 75 75 75
N - FORK + HEADSET 597 597 597 597
O - FORK OFFSET 44 44 44 44
P - TIRE DIAMETER 752 752 752 752
Q - SEAT RAIL DISTANCE FOR EFFECTIVE SEAT ANGLE 665 707 750 793

Specifications

Explosiondrawing
Frame
LAST COAL V4
Sizes
165 | 175 | 185 | 195
Travel
165 mm
Fork Travel
170 - 180 mm | max. 180 mm
Colors
black anodized | raw brushed | dark blue painted | custom
Material
frame: aluminum 6011 T6 | cnc-parts: 7075 T6
Wheel sizes
MX all sizes | 29" from 185
Rear width
148 mm
Rear axle
LAST through axle 12 mm | M12x1
Headtube
IS41, IS52
Bottom bracket
BSA 73 mm
Drivetrain
only one-by drivetrains
Q-Factor
min. Q-168
Chain guide tabs
ISCG 05 via adapter
Max. chainring size
36T (55 mm chain line) | 52 mm chain line may be possible - clearance between chainstay and cog should not be less than 2 mm | specs are valid for round cogs
Derailleur hanger
Sram UDH (Universal Derailleur-Hanger) |rear triangle compatible to Sram T-Type drivetrains
Seat tube
31,6 mm
Seat clamp
34,9 mm
Min. insert seat post
sizes 165 & 175: 130 mm | sizes 185 & 195: 150 mm
Max. insert seat post
sizes 165 & 175: 280 mm | sizes 185 & 195: 320 mm | the seat posts can often be lowered
Max. seat post extension
the maximum permitted extension length of the seat post is 370 mm (to the middle of the saddle rails)
Shock size
185x55 mm Trunnion
Hardware bottom
30x8,0 mm
Compatible shocks
most current shocks are compatible | every shock must be test assambled and checked for free running and to be collision free | checked shocks are listed in the Tech Archive
Recommended shock SAG
30%
Disc mount
postmount 180 | max. 203 mm rotors
Compatible caliper
all current 2- and 4 piston postmount calipers
Bottle cage mount
on down tube
Tool mount
on top tube
Bearings
Enduro Bearings Max Type, full complement, seeled deep grove stainless stell ball bearings | size 28x15x7 mm
Tires
29" and 27,5" to 2,5" width (depends on tire/rim combination)
Max. system weight
130 kg (rider + bike + gear)
Frame weight
size 165: 3,1 kg | size 175: 3,2 kg | size 185: 3,3 kg | size 195: 3,4 kg | frame weights in raw incl. all frame components and protectors, without thru axle| coated frames are heavier
Leverage Ratio

Progressive Suspension System

We have been successfully implementing progressive suspension systems for over 20 years. The variation of link and rocker makes it possible to adjust the leverage ratio and suspension travel for the intended purpose. Modern shocks offer more adjustment options that can be used for personal customization. This has enabled us to slightly reduce the progression. The use of the suspension travel is optimized without releasing too much travel in the middle of the stroke. The progressive characteristic leverage ratio is well suited to coil and air shocks. We calculate the progression from the SAG point, as we consider this value to be more meaningful.
Anti-Squat

Anti-Squat

In order to generate the best possible pedalling efficiency for every frame size, the kinematics have been optimized so that the differences between the anti-squat curves are minimal. In addition to the improved riding position, the slightly increased anti-squat value ensures greater pedalling efficiency. In blue the graphs show the anti-squat value of the four frame sizes depending on the gear engaged. Shaded in gray are the curves that would have resulted without size-specific correction. This complex design is particularly advantageous for short and tall riders, as they would otherwise be far from the optimum due to their low respective high center of gravity.
Anti-Rise

Anti-Rise

The anti-rise value determines how the suspension behaves when braking. Values below 100 % tend to cause the rear triangle to extend under braking. Above 100 %, the rear compresses and the suspension behaves firmer. The size-specific optimization of the position of the pivot points results in practically congruent graphs, shown in blue, for all four frame sizes.

Geometry

The geometry of the COAL is clearly designed for demanding enduro riding. The modern reach-to-stack ratio ensures best riding position on the bike. The 63 degree head angle generates a lot of confidence in rough sections and keeps the speed high. The chainstay length increases in size 195 up to 447 mm and ensures very good integration into the bike. For sizes 165 and 175 the chainstays are so short that the lively MX-setup is mandatory. Specified is the geometry with 180 mm fork. Whith a 170 mm fork, the steering angle will be about 0.4 degrees steeper and the reach grows by 5 mm. The full geometry with 170 mm fork will follow shortly.
Geometry

165 FRAME SIZE

Suggested Rider Height
1.65 M
A - REACH
430
B - STACK
619
C - HEAD ANGLE
63°
D - SEAT ANGLE (EFFEKTIVE)
76.5°
E - SEAT ANGLE
69.7°
F - SEAT TUBE
385
G - CHAINSTAY
430
H - HEAD TUBE
95
I - BB DROP
-22
J - WHEELBASE
1214
K - TOP TUBE (TILL INTERSECTION EFFEKTIVE SEAT ANGLE)
578
L - STANDOVER
725
M - MEASURING DISTANCE FOR STANDOVER
75
N - FORK + HEADSET
597
O - FORK OFFSET
44
P - TIRE DIAMETER
752
Q - SADDLE RAIL DISTANCE FOR EFFECTIVE SEAT ANGLE
665

175 FRAME SIZE

Suggested Rider Height
1.75 M
A - REACH
460
B - STACK
632
C - HEAD ANGLE
63°
D - SEAT ANGLE (EFFEKTIVE)
76.6°
E - SEAT ANGLE
70.2°
F - SEAT TUBE
390
G - CHAINSTAY
430
H - HEAD TUBE
110
I - BB DROP
-22
J - WHEELBASE
1251
K - TOP TUBE (TILL INTERSECTION EFFEKTIVE SEAT ANGLE)
611
L - STANDOVER
726
M - MEASURING DISTANCE FOR STANDOVER
75
N - FORK + HEADSET
597
O - FORK OFFSET
44
P - TIRE DIAMETER
752
Q - SADDLE RAIL DISTANCE FOR EFFECTIVE SEAT ANGLE
707

185 FRAME SIZE

Suggested Rider Height
1.85 M
A - REACH
490
B - STACK
651
C - HEAD ANGLE
63°
D - SEAT ANGLE (EFFEKTIVE)
77.1°
E - SEAT ANGLE
72.1°
F - SEAT TUBE
430
G - CHAINSTAY
438
H - HEAD TUBE
130
I - BB DROP
-23
J - WHEELBASE
1297
K - TOP TUBE (TILL INTERSECTION EFFEKTIVE SEAT ANGLE)
639
L - STANDOVER
731
M - MEASURING DISTANCE FOR STANDOVER
75
N - FORK + HEADSET
597
O - FORK OFFSET
44
P - TIRE DIAMETER
752
Q - SADDLE RAIL DISTANCE FOR EFFECTIVE SEAT ANGLE
750

195 FRAME SIZE

Suggested Rider Height
1.95 M
A - REACH
525
B - STACK
669
C - HEAD ANGLE
63.1°
D - SEAT ANGLE (EFFEKTIVE)
77.7°
E - SEAT ANGLE
74.2°
F - SEAT TUBE
475
G - CHAINSTAY
447
H - HEAD TUBE
150
I - BB DROP
-23
J - WHEELBASE
1350
K - TOP TUBE (TILL INTERSECTION EFFEKTIVE SEAT ANGLE)
672
L - STANDOVER
739
M - MEASURING DISTANCE FOR STANDOVER
75
N - FORK + HEADSET
597
O - FORK OFFSET
44
P - TIRE DIAMETER
752
Q - SADDLE RAIL DISTANCE FOR EFFECTIVE SEAT ANGLE
793

Specifications

Explosiondrawing
Frame
LAST COAL V4
Sizes
165 | 175 | 185 | 195
Travel
165 mm
Fork travel
170 - 180 mm | max. 180 mm
Colors
black anodized | raw brushed | dark blue painted | custom
Materials
frame: aluminum 6011 T6 | cnc-parts: 7075 T6
Wheel size
MX in all sizes | 29" from size 185
Rear width
148 mm
Rear axle
LAST through axle 12 mm | M12x1
Head tube
IS41, IS52
Drivetrain
only one-by drive train
Q-Faktor
min. Q-168
Bottom bracket
BSA 73 mm
Chain guide tabs
ISCG 05 via adapter
Max. chainring size
36T (55 mm chain line) | 52 mm chain line may be possible - clearance between chainstay and cog should not be less than 2 mm | specs are valid for round cog
Derailleur hanger
Sram UDH (Universal Derailleur Hanger) | rear triangle compatible to Sram T-Type drivetrains
Seat tube
31,6 mm
Seat clamp
34,9 mm
Min. insert seat post
sizes 165 & 175: 130 mm | sizes 185 & 195: 150 mm
Max. insert seat post
sizes 165 & 175: 280 mm | size 185 & 195: 320 mm | the seat posts can often be lowered
Max. seat post extension
the maximum permitted extension length of the seat post is 370 mm (to the middle of the saddle rails)
Shock size
185x 55 mm Trunnion
Hardware bottom
30x8,0 mm
Compatible shocks
most current shocks are compatible | every shock must be test assambled and checked for free running and to be collision free | checked shocks are listed in the Tech Archive
Recommended shock SAG
30%
Brake mount
Postmount 180 | max. 203 mm discs
Compatible calipers
All current 2 and 4 piston postmount calipers
Bottle cage mount
on down tube
Tool mount
on top tube
Bearings
Enduro Bearings Max Type, full complement, seeled deep grove ball stainless steel bearings | size 28 x 15 x 7 mm
Tires
29" and 27,5" to 2,5" width (depends on tire/rim combination)
Max. system weight
130 kg (rider + bike + weight)
Frame weight
size 165: 3,1 kg | size 175: 3,2 kg | size 185: 3,3 kg | size 195: 3,4 kg | frame weights in raw incl. all frame components and protectors, without thru axle| coated frames are heavier

Progressive Suspension System

Levarage Ratio We have been successfully implementing progressive suspension systems for over 20 years. The variation of link and rocker makes it possible to adjust the leverage ratio and suspension travel for the intended purpose. This results in two optimized kinematics for COAL and GLEN. Modern shocks offer more adjustment options that can be used for personal customization. This has enabled us to slightly reduce the progression. The use of the suspension travel is optimized without releasing too much travel in the middle of the stroke. The progressive characteristic leverage ratio is well suited to coil and air shocks. We calculate the progression from the SAG point, as we consider this value to be more meaningful.

Anti-Squat

Anti-Squat In order to generate the best possible pedalling efficiency for every frame size, the kinematics have been optimized so that the differences between the anti-squat curves are minimal. In addition to the improved riding position, the slightly increased anti-squat value ensures greater pedalling efficiency. In blue the graphs show the anti-squat value of the four frame sizes depending on the gear engaged. Shaded in gray are the curves that would have resulted without size-specific correction. This complex design is particularly advantageous for short and tall riders, as they would otherwise be far from the optimum due to their low respective high center of gravity.

Anti-Rise

Anti-Rise The anti-rise value determines how the suspension behaves when braking. Values below 100 % tend to cause the rear triangle to extend under braking. Above 100 %, the rear compresses and the suspension behaves firmer. The size-specific optimization of the position of the pivot points results in practically congruent graphs, shown in blue, for all four frame sizes.

Features

WARRANTY AND CRASH REPLACEMENT

The COAL frame is warranted against defects in materials and workmanship for 6 years - racing included. If the frame is damaged due to a crash, our crash replacement program will take effect. Since we do stock the individual parts of the frame, it is rarely necessary to replace the entire frame. The crash replacement is valid within the first three years from purchase and includes a 50 % discount on the respective frame components. We approve the COAL frames for use in category 5 according to ASTM F-2043-13. To be able to use the entire bike in this category, suitable components must be installed.
frame size 195

FUNCTIONAL FRAME DESIGN

The design of the new frame generation is straightforward and clean. Not every shape can be realized light and durable at the same time. Primarily the concept needs to work on the trail. The focus is therefore always on performance, meaning the combination of functionality and light weight. Form follows – the seat stays and the top tube run elegantly in a diagonal. The top tube sits lower on the now entirely completely straight seat tube. This saves weight, increases stiffness and the standover height is lower across all frame sizes. Insertion depth is plenty while seat tubes are short. The head tube length increases significantly for the larger sizes, so that unnecessary spacer towers can be dispensed with. The picture shows the frame after smooth welding in frame size 195.
hybrid manufacturing - welding in Taiwan

Hybrid Manufacturing

Our frames are welded, aligned and heat-treated in Taiwan, while final machining of the threads, contact surfaces and bearing seats is completed in Germany using 5-axis-mills. We check the individual parts before assembly and press in the bearings. This way we can control the quality, proper assembly and perfect function of each frame.
LAST - Total Bearing Quality

Total Bearing Quality

Each front and rear triangle is machined on a high-precision 5-axis milling machine in one setup. The aim is to achieve a high-quality and, above all, durable bearings. In addition to the bearings as such, this includes the bearing seats, the alignment of the bearing seats to each other and the mounting and protection against dirt. Stainless steel full complement bearings allow for better load carrying capacity and increase the radial stiffness while increasing corrosion protection.The machining of all bearing seats on the frame allows for the most precise diameter, shape and position tolerances, so that components are not stressed during assembly and operation.

UNIFORM BEARING AND BOLT SIZE

For the entire frame, we use the standardized bearing size 28x15x7 mm, which is available worldwide. We mount full complement bearings made of stainless steel from Enduro Bearings, which are fully filled with grease. Stainless steel full complement bearings allow for better load carrying capacity and increase the radial stiffness while increasing corrosion protection. M15 bolts of the same type are used uniformly on the front- and rear triangle as well as on rocker and link.
machined bearing seat after CNC-milling

SEALED C-Lock-RINGS

The C-lock rings of the bearings have an integrated sealing function. For this purpose, they are overmolded with rubber. If necessary, they can be replaced by standard parts available worldwide. The C-lock-rings are colored red in the CAD image.
sealed C-lock-rings shown in red

Captive Hardware

The additional washers required for the trunnion mount are captively pressed into the rocker. The washers additionally seal the bearing seats from the inside and are shown in blue. The lower mounting hardware is made of titanium and PVD coated.
captive hardware shown in blue
COAL

BIKE HANDOVER AND FIRSTRIDE

You can pick up your bike from us in Dortmund and ride it directly with us on the trail. As part of a guided first ride, we will support you with the optimum suspension setup and set the bike up perfectly for you so that no more screwing is required at home. If the selected spring rate does not fit, we will replace it directly on site. The Firstride is part of our service promise and is free of charge.
frame parts

Spare Parts

Durable and full serviceable bikes are key goals for our team. Of course, we have all spare parts in stock so that the frame can be used for a long period. All spare parts can be collected from us locally or ordered directly via our webshop.
One Platform - Two Characters

One Platform - Two Characters

COAL and GLEN share one frame platform. You can convert the COAL into a GLEN by swapping rocker and link. Each bike has a completely independent character thanks to the elaborately adapted kinematics. The new aluminum platform combines durability, serviceability, quality and low weight with maximum strength. You can easily configure the matching conversion kit with your frameset or complete bike.
COAL

EVERY BIKE IS UNIQUE

We build around 500 frames a year in our manufactory, which are ridden all over the world. Every single LAST - whether made of aluminum or carbon - is very individual and probably unique. Our highly experienced mechanics build every frame with the greatest care and attention to detail and test ride every single complete bike before handing it over. We only offer what we ride ourselves and can recommend without reservations. When purchasing the shock from us we make sure the tune is suited for the bike. For each configuration the exact delivery date is calculated and displayed live. Before buying, you can test all bikes extensively with us in Dortmund and at events. We are a small team of passionate mountain bikers and will be happy to help you configure your COAL complete bike or frameset.
COAL

Detail:

Extension:

Categorie:

Choose your model

TEST: 1

KOMPLETTRAD

from 4,714.00 EUR

RAHMENSET

from 2,499.00 EUR