XM557-Basic + "Smart Spindle System"
- 175,0 Arms, Spindle, LockNuts, LockRings (460 g) --- 359,00 €
- 172,5 Arms, Spindle, LockNuts, LockRings (455 g) --- 359,00 €
- 170,0 Arms, Spindle, LockNuts, LockRings (450 g) --- 359,00 €
- 165,0 Arms, Spindle, LockNuts, LockRings (440 g) --- 359,00 €
- XM557-Basic + "Smart Spindle System"
- Specs + Weights
- Bearing Kits : "Smart Spindle System"
- "Smart Drivetrain Concept"
- The New 2015er “XM557-Basic”
The new “XM557-Basic” is the successor of our proven XC666 crank platform. It serves as the very new crank-basis, ie. “carrier” for all possible XM557 crank models. As a crank concept it is unmatched regarding compatibility (bottom brackets) and diversity (Smart Drivetrain Concept)!
The “XM557-Basic” recieved physical improvement and revision on all parts, ie. spindle, lock nuts, lock rin g and, especially, arms. In comparisson with its predecessor “XC666” it is 35 grams lighter. Thus the arm-pair incl shaft/spindle and all small parts is running at just 460 grams (see “Specs + Weights”). (440 grams at arm length 165 mm).
The combination of the “XM557-Basic” and our complete XX1 drive-train unit (from 60g) produces a complete 1X-crank (from 520 grams). Followed by the lightest 2x10-model (101 grams = 565 grams) and the classic model with 3x10 unit (130 grams = 595 grams).
- 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.
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 WEIGHT “XM557-Basic”:
175 mm: 460 g crank platform (2 arms, 1 shaft, 2 Locknuts, 1 lockring, 2 left clamping screws)
- 172,5 mm: 455 grams
- 170 mm: 450 grams
- 165 mm: 440 grams
- WEIGHT COMPARISONS “CRANK PLATFORMS” 175 mm:
560 g : RaceFace Turbine : 2 Arms, Locknuts, Spindle, Lockring
480 g : SRAM XX1 (GXP): 2 Arms, Locknuts, Spindle, Screws
470 g : SRAM XX1 (BB30): 2 Arms, Locknuts, Spindle, Screws
465 g : ROTOR REX1-BB30: 2 Arms, Locknuts, Spindle, Lockring
460 g : B.O.R XM557: 2 Arms, Locknuts, Spindle, Lockring
420 g : Cannondale SI: 2 Arms, Locknuts, Spindle, Lockring
385 g : Race Face Next SL: 2 Arms, Locknuts, Spindle, Lockring
375 g : Cannondale SISL2: 2 Arms, Locknuts, Spindle, Lockring
350 g : BOR XC4X: 2 Arms, Locknuts, Spindle (Feb 2015)
All crank platforms contain all parts and hardware for mounting a drive unit (spider + chainrings).
- USAGE / ENVIRONMENT:
- Cross Country
- 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
- 164 mm
- 147 mm
- 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:
- See “Crank Accessories Rings Spiders”
- “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!)
MTB BOTTOM BRACKET:
|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:
|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:
|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)
1x11 SRM Powermeter (for 30, 32, 34, 36, 38 T)
2X10-XX SRM Powermeter (for 42/27, 40/26 T)
1x11 Power2Max Meter (for 30, 32, 34, 36, 38 T)
2X10 Flex Power2Max Meter (for 42/27, 40/26, 38/24, 36/22 T)