XM557-2X_29/X0 + "Smart Spindle System"

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14+
 

Options

  • 175 Black-Black / No Bearing Kit / from 560 g --- 549,00 €
  • 175 Black-Orange / No Bearing Kit / from 560 g --- 549,00 €
  • 175 Black-Red / No Bearing Kit / from 560 g --- 549,00 €
  • 175 Black-Blue / No Bearing Kit / from 560 g --- 549,00 €
  • 175 Black-Green / No Bearing Kit / from 560 g --- 549,00 €
  • 175 Black / No Bearing Kit / No Rings / from 495 g --- 459,00 €
549,00 €
inkl. 19% Mwst.
461,34 € Netto
Art-Nr. : 03.02.01.211.04.02.07
“XM557-2X_29/X0” … the “Intelligent Crank”

Being the worlds most compatible 29er crank the new “XM557-2X_29/X0” combines an unmatched transmission range with maximum bottom bracket compatibility and low weight! And apart from that it is the choice of “German Champion Marathon” Silke Schmidt (2013, 2014).

Starting at just 560 grams the “XM557-2X_29/X0” is even 40 grams below the lightest predecessor version (XC666-29er). This model is the synthesis of our “XM557-Basic” as a “carrier” (460 g) and our mounted X0 drivetrain unit for 2x10 (from 101 g).

With its X0-compatible bolt cycle diameter (104/64BCD), the “XM557-2X_29/X0” offers a considerably higher selection of transmissions than competitor’s cranks: 34/20 - 36/22 - 38/24 - 40/26. Moreover its big rings come “Direct Bolt”-ready, which is also known from big SRAM XX-rings (ring with integrated threads M10x0,75). This ensures quick and easy replacement from outside.

Of course B.O.R rings are not only lighter than other X0-compatible rings, but undergo a multi-stage, complex surface treatment that aims at high surface hardness and durability (Double Surface Treatment). Featuring our “Smart Performance Shift” “2X-104/64BCD” rings offer the maximum number of ramps and pins on the the big rings (up to 6 up-shifting sectors), which renders our cranks and rings DI2/EPS-ready.

The “XM557-2X_29/X0” is the answer to SRAM’s “X0” and Shimano’s “XTR 2X”, Race Faces “Next SL 2X”, E*13’s “2X”, Rotor’s “XC2” and Cannondale’s “XX” … it’s only just better!

WHAT IS THE “PERFECT CRANK”?

Whoever claimes to call his drivetrain a “Perfect Crank”, cares to offer a mountain biker more freedom, opportunities and flexibility than any other crank. It should be the very crank that you can take with you into any new bike! It should be the very crank that can be converted for any alternative transmission type! It should be the very crank that one acquires when future professional training is planned by “metering” your power.

This is what maybe the most “ultimative” crank platform on the market!

Since 2010 B.O.R cranks fit - thanks to the “SmartSpindleSystem” - into almost every bottom bracket. Until today there are 25 different environments: 11 x MTB ; 9 x Road ; 5 x Fatbike. For this purpose, BOR Germany and Tune offer the same bearing kits !

The integrated “Smart Drivetrain Concept” allows for changing / mounting of 16 different transmission types (Spider+Chainrings): 9 x MTB ; 7 x Road.

Thus, B.O.R cranks are “PowerMeter-Ready” (SRM, Power2Max), as - in addition to regular spiders - MTB Powermeters or Road Powermeters can be integrated in “Plug & Play” fashion!

B.O.R cranks, currently only manufactured as “XM557”, will be available from 2015 in three different weight, price and performance categories.

And, of course, B.O.R cranksets are designed and manufactured in Germany!

CRANK WEIGHTS / TRANSMISSIONS:

460 g crank platform (2 arms, 1 shaft, 2 Locknuts, 1 lockring, 2 left clamping screws)

495 g with Spider (WITHOUT chainrings, WITHOUT bearing kit)

564 g with 34/20 chainrings (WITHOUT bearing kit)

570 g with 36/22 chainrings (WITHOUT bearing kit)

580 g with 38/24 chainrings (WITHOUT bearing kit)

595 g with 40/26 chainrings (WITHOUT bearing kit) (Dec.14)

To calculate the complete weight incl bearing kit add weights according to BB list.

WEIGHT COMPARISONS CRANKS WITH 38 / 24T:

740 g : Shimano XT FC-M8000-2 (Hollowtech II) 96/64 incl 38/28 Shimano-chainrings (WITHOUT bearing kit)

720 g : Race Face Turbine-29er 104/64 incl 38/24 RaceFace-chainrings (WITHOUT bearing kit)

690 g : ethirteen TRS+ Double 104/64 incl 38/24 eThirteen-chainrings (WITHOUT bearing kit)

640 g : SRAM X0 (GXP) X0-104/64 incl 38/24 SRAM-chainrings (WITHOUT bearing kit + without bashguard)

635 g : Shimano XTR FC-M9000-2 (Hollowtech II) 96/64 incl 38/28 Shimano-chainrings (WITHOUT bearing kit)

630 g : SRAM X0 (BB30) X0-104/64 incl 38/24 SRAM-chainrings (WITHOUT bearing kit + without bashguard)

625 g : ROTOR REX1 QX2 29er-110/60 incl 38/24 Q-Rings (WITHOUT bearing kit)

580 g : B.O.R XM557 X0/29er 104/64 incl 38/24 B.O.R-chainrings (WITHOUT bearing kit)

575 g : Cannondale SI 29er 104/64 incl 38/24 SRAM-chainrings (WITHOUT bearing kit)

545 g : Race Face Next SL-29er 104/64 incl 38/24 RaceFace-chainrings (WITHOUT bearing kit)

520 g : Cannondale SISL2 29er 104/64 incl 38/24 SRAM-chainrings (WITHOUT bearing kit)

470 g : BOR XC4X X0/29er 104/64 incl 38/24 B.O.R-chainrings (WITHOUT bearing kit)

USAGE / ENVIRONMENT:
2x9 / 2x10 / 2x11 - 29er/X0 Cross Country
2x9 / 2x10 / 2x11 - 29er/X0 Marathon
NOT for Downhill / Enduro
TECHNOLOGY / FINISH
Fully CNC machined (Light Alloy 7022/7010/7051)
“Scotching” (additional surface brushing)
Anodizing (Coloring, Coating, Hardening)
Laser Edging
ARM LENGTH:
175mm / 172,5 mm / 170 mm / 165 mm
CHAINLINE:
49,5 mm
Q-FACTOR
164 mm
U-FACTOR:
147 mm
K-FACTOR:
96 mm
SHAFT / SPINDLE:
30 mm aluminum shaft
REAR DROPOUT-SPACING:
Spindle length, chain line, K-factor and Q-factor of this crank was designed for regular CrossCountry-, Marathon and AllMountain Frames! These usually have a rear dropout clearance of 135-148 mm.
BCD / SPIDER / LOCK NUTS:
104/64 mm / 4 arm (XX 29er / like SRAM X0)
compare SRAM X0, RACE FACE Next SL 104/64
Black : Red : Blue : Orange : Cannondale Green (Link)
CHAINRINGS / COMPATIBILITY:
Fixing principle “Direct Bolt” (M10x0.75 thread like XX)
2x9 / 2x10 / 2x11
34/20 - 36/22 - 38/24 - 40/26
“SMART SPINDLE SYSTEM”:

Developed in 2010 in cooperation with Tune, the “Smart Spindle System” was designed for cranks with 30 mm spindle and secures the installation of our crank platform in virtually any bottom bracket shell (except Trek BB90). It is the first fully compatible bottom bracket and crank concept, which aims at being compatible for a maximum number of bottom bracket environments. (An equally innovative solution came in 2011 from Corratec with “UBBS” as a frame-based approach. Rotor moved in 2013 with his “UBB” a while later.)

The “Smart Spindle System” is based on a K-factor of 96 mm for MTB cranks, on a K-factor of 91 mm for Road cranks. The K-factor is the spindle/shaft clearance with arms fully assembled (see chart)! All MTB and road bike bearing kit of the “Smart Spindle System” adjust / are shimmed to the respective K-factor. The bearing kits sets of B.O.R and Tune are therefore identical!

There are 4 different bearing cups, 3 different spacer rings and two bearings existing. These few parts allow for composing 7 “MTB Bearing kits” to fit into 11 different MTB bottom bracket housinBB environments. 8 “Road Bearing Kits” are needed for 9 different BB environments. And, well, it is also enough for the 5 bottom brackets, already existing for Fatbikes.

All of these minimum 25 bb variants are clearly specified (see graphics in “Bearing Kits Smart Spindle System”), manufacturers such as BSA, SRAM, Shimano, Cervelo, Open, Specialized, FSA, etc. The individual frame manufacturers decide on what bb they integrate into each of their frame models! So, if you want to know what bb is in YOUR frame, contact the dealer of your frame manufacturer!

Thus, the “Smart Spindle System” tries to clean up the mess, “created” by too many “creatives”! And it gives at least some guidance to public consumers, dealers and even to journals, who seek orientation themselves. (And the byproduct is a very smart crank system!)

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MTB BOTTOM BRACKET:

Type Weight Price
MTB BSA68 +98g 85,- Euro
MTB BSA73 +94g 85,- Euro
MTB BSA73 eType +92g 85,- Euro
MTB ITA70 +94g 85,- Euro
MTB BB30/73 Cannondale +62g 59,- Euro
MTB BB85/84,5 Specialized +59g 59,- Euro
MTB PF30/73 +72g 85,- Euro
MTB BB386EVO/91,5 PRESSFIT +72g 85,- Euro
MTB BB Right/84 PRESSFIT +70g 85,- Euro
MTB BB92/89,5 sym. PRESSFIT +74g 124,- Euro
MTB BB92/92 asym. PRESSFIT +72g 124,- Euro

.

FATBIKE BOTTOM BRACKET:

Type Weight Price
FATBIKE BSA100 for 170/177 RDS +98g 85,- Euro
FATBIKE PF30.100 for 170/177 RDS +72g 85,- Euro
FATBIKE BB121 for 170/177 RDS +72g 85,- Euro
FATBIKE BSA100 for 190/197 RDS +98g 89,- Euro
FATBIKE BSA120 for 190/197 RDS +98g 85,- Euro
FATBIKE PF30.100 for 190/197 RDS +72g 89,- Euro
FATBIKE PF30.132 for 190/197 RDS +72g 85,- Euro

.

ROAD BOTTOM BRACKETS:

Type Weight Price
Road BSA68 +98g 85,- Euro
Road ITA70 +94g 85,- Euro
Road BB30 +62g 59,- Euro
Road BB Right Standard +58g 59,- Euro
Road PF30 +72g 85,- Euro
Road BB30 OS Specialized +75g 85,- Euro
Road BB386EVO PRESSFIT +70g 85,- Euro
Road BB Right PRESSFIT +70g 85,- Euro
Road BB86 Pressfit +70g 124,- Euro
“SMART DRIVETRAIN CONCEPT”

Apart from the unmatched flexibility regarding bottom bracket environments, B.O.R cranks offer an unparalleled variety of existing “transmission units”. The additionally integrated “Smart Drivetrain Concept” allows for changing / mounting 9 different MTB transmission types and 7 different Road transmission types (Spider+Chainrings). Thus B.O.R cranks are “PowerMeter-Ready” (SRM, Power2Max), as these powermeters can be integrated on a “Plug & Play” basis.

B.O.R cranks allow the athlete free choice in picking the right “transmission type” / “transmission unit”. Thus openning up the possibility to follow a trend, such as the 1x11 system (which has compelling advantages), but afterwards also to change back to known territory, if needed.

Because, as for statistic are giving us a hint, that the world’s dominat transmission system in the high-quality, ambitious and professional field will still be 2x10 or 2x11 in the future (CrossCountry & Marathon).

LIST OF POSSIBLE DRIVETRAIN/TRANSMISSION UNITS:

1X11 (for 30, 32, 34, 36, 38 T)

2X10 X0/29er (for 34/20, 36/22, 38/24 T)

2X10 XX (for 36/24, 38/25, 40/26, 42/27 T)

3X10

1x11 SRM Powermeter (for 30, 32, 34, 36, 38 T)

2X10-XX SRM Powermeter (for 42/27, 40/26 T)

3X10-SRM Powermeter

1x11 Power2Max Meter (for 30, 32, 34, 36, 38 T)

2X10 Flex Power2Max Meter (for 42/27, 40/26, 38/24, 36/22 T)