Components, DH, News, SRAM, X01 - March 5, 2014

First Look: SRAM X01 DH Drivetrain

We knew it was just a matter of time until X01 spread its wings in the Downhill Racing arena. Already a favorite among many gravity oriented racers, SRAM made several improvements to make 1x stronger, quicker and more precise.

Read on see if this new drivetrain is for you.

SRAM 1X Technology

X-SYNC
SRAM X-SYNC 1X chain rings provide the highest level of performance and durability. The SRAM X-SYNC tall square teeth edges engage the chain earlier than traditional triangle shaped teeth. The sharp and narrow tooth profile, as well as rounded chamfer edges, help manage a deflected chain. To provide the best possible performance in muddy conditions, the X-SYNC chain rings have been designed with mud-clearing recesses for the inner chain links and rollers. Engineered in Germany, X-SYNC rings are an integral part of the SRAM 1X drivetrain.

HARD CHROME
The XX1 chain has four times the elongation (wear) resistance to our other chains. This is due to the new finishing process on the inner links and rollers. Push pin strength and ultimate strength are equivalent to our current chains. The XX1 chain lasts longer and is just as strong.

X-HORIZON
This rear derailleur’s “straight parallelogram” design limits all movement to the horizontal axis, which makes ghost shifting impossible while also reducing shift force. For quicker, more exact shifting, the large upper pulley offset design maintains a constant chain gap across all gears.

//www.youtube.com/watch?v=SxG0PrPCe9c

Video: SRAM X01 DH Technology – interviews with engineers and designers.

CAGE LOCK
With CAGE LOCK technology in the rear derailleur, wheel removal and installation—as well as chain installation—becomes faster and simpler. Just pushing the cage forward to create slack and lock it into place.

ROLLER BEARING CLUTCH
ROLLER BEARING CLUTCH technology eliminates derailleur bounce and chain slap without sacrificing precision.

X-ACTUATION
Developed specifically for SRAM 1X, X-ACTUATION keeps shifting sharp and consistent across the entire 10- to 42-tooth cassette.

JET
With durable JET black finish, the cassette looks as tough as it performs—ride after ride. JET finish provides a higher level of corrosion resistance.

MINI BLOCK
Light, strong and precise, the MINI BLOCK X-DOME cassette lets you bring the right kind of power to every ride. This 7-speed cassette designed for downhill features an optimized gear range that eliminates the need for double/triple shifts to get in the gear you want.

XD DRIVER BODY
XD is a cassette driver body design that allows the use of a 10-tooth small cog and provides an improved interface with the cassette.

X-DOME
X-DOME technology creates an incredibly lightweight, precise and strong cassette. The open design aids in mud clearance, giving you cleaner shifting performance and longer component life.

SRAM X01 DH 7-Speed

Every descent rewrites the laws of gravity. Every mountain pushes you further. Engineered in Germany, SRAM X01 DH delivers quicker shifting, smarter gear steps, and more precise chain management. Featuring SRAM’s 7-speed X-HORIZON rear derailleur and X-DOME MINI BLOCK cassette, the X-SYNC chain ring, and the X-ACTUATION trigger shifter, it’s the integrated SRAM 1X drivetrain for complete control. Made for gravity athletes. Proven by champions. And now available to every rider. X01 DH. GO BEYOND.

//www.youtube.com/watch?v=GO_Sv9tnPrY

Video: How to install an X01 DH drivetrain.

SRAM X01 DH 7-Speed Overview:

High performance shifting engineered for DH bikes
Optimized gearing for DH
Lightest crank, lightest cassette, lightest shifter, lightest group
Better overall system durability
All X0 DH cranks get upgraded to X01 DH cranks with X-SYNC rings
Based on our SRAM 1X philosophy of a dedicated system, X-SYNC, X-HORIZON, X-ACTUATION
10-tooth cog allows smaller chain rings for more ground clearance

SRAM X01 DH 7-Speed Setup:

X01 DH X-SYNC Carbon Crank
X01 DH 7-Speed MINI BLOCK Cassette
X01 DH X-HORIZON 7-Speed RD
X0 7-Speed Trigger Shifter
XD DRIVER BODY
PC-XX1 11-Speed Chain

New X01 DH X-SYNC Carbon Crank

The X01 DH crankset with X-SYNC technology is engineered for ultimate DH performance in the most aggressive terrain. The carbon crank combines stiffness and strength with lightest-in-class weight of under 800 grams. Proven in World Cup and World Championship racing, it’s the crankset made for relentless downhill rides.

Features/Benefits:

Carbon DH racing crank
Lightest in class carbon construction
High strength alloy pedal lug
7075 CNC alloy single ring, 94 BCD, 30, 32, 34, 36, or 38 teeth
Compatible with SRAM 1X 7- and 10-speed DH drivetrains

Technologies:

X-SYNC
BB30
GXP

X-SYNC Chain Rings

Engineered for downhill, the X-SYNC narrow-wide chain ring delivers complete control. Tall, square teeth, rounded chamfers and a thick-thin tooth geometry combine to engage the chain earlier—and never let it go. With multiple ring options available, you can match your gear range to your terrain, wheel size and riding style. And recesses at the base of the teeth get rid of mud so the chain remains in place no matter what conditions you’re up against.

Features/Benefits:

X-SYNC tall, square tooth design provides maximum chain control
Sharp, narrow tooth profile and rounded chamfer edges help manage a deflected chain
30-, 32-, 34-, 36-, or 38-tooth single ring
X-SYNC technology for all 10- and 11-speed systems, as well as new 7-speed systems
CNC machined 7075, two- tone anodize
Mud-clearing recesses for the inner chain links and rollers
An integral component of the SRAM 1X drivetrain

Technologies:

X-SYNC

SRAM X-SYNC: A Developing Story

More than a decade ago, SRAM’s German engineers decided to go head-to-head with a fundamental frustration of biking—how to keep the chain on the ring. They began by looking at dual-drive solutions concocted for urban riders whose chains would disengage as they pedaled along bumpy European roads. These dual-drive models offered a simplified, focused approach that could make sense away from the city streets, too. The engineers were inspired. Ideas started to fly. Designs followed. Field tests. Frustrations. They learned lessons—for instance, that side-to-side movement (not up-and-down) was the most frequent cause of a disconnected chain.

The engineers now had a single goal in mind: to create the perfect MTB chain ring—a ring that wouldn’t drop the chain in any conditions or under any circumstances. This led to the unprecedented thick-thin tooth shape. To optimized square tooth geometry. To mud recesses that kept the chain clean and moving. All focused on the dynamic bike platform. As SRAM lead engineer Frank Schmidt puts it, “We further developed it until we reached perfect chain control.” The original narrow-wide chain ring is now the perfect MTB chain ring for riders who never compromise. X-SYNC—ONLY BY SRAM.

NEW XG-795 X01 DH MINI BLOCK 7-speed Cassette

The MINI BLOCK X-DOME 7-speed cassette is engineered for the optimized gear steps that downhill riders want. Featuring 10–24 gearing with two-tooth steps, this technology eliminates the need for double/triple shifts to get in the gear you want. And because it’s so compact, it’s also light—the lightest cassette in existence. Compatible with any XD wheel, MINI BLOCK X-DOME technology integrates flawlessly with your SRAM 1X drivetrain. With durable JET black finish, the cassette looks as tough as it performs—ride after ride.

Features/Benefits:

Larger jumps between gears eliminate the need for double/triple shifts to get in the gear you want. (10-12-14-16-18-21-24)
Less cogs allow faster transition from starting gear to high gear. Half as many shifts to get from 24-10 versus a normal 10-speed 26-11
Larger gear range, 10-tooth cog opens up high end and allows smaller rings for ground clearance
Lightest cassette. Ever.
More rear wheel clearance around spokes
2-tooth steps are safer in shifting than 1-tooth steps under big loads
Currently fits any XD compatible wheel and driver body

Technologies:

X-DOME
MINI BLOCK
JET
XD DRIVER BODY

NEW X01 DH X-HORIZON Rear Derailleur

The 7-speed X-HORIZON rear derailleur makes shifting smooth and reliable no matter where you ride. Engineered to maintain consistent chain gap across all seven gears, X-HORIZON eliminates vertical movement for faster shifting, reduced shift force and an end to ghost shifting. ROLLER BEARING CLUTCH technology and the 12-tooth X-SYNC pulley wheels hold the chain in place, reducing bounce and chain slap. And CAGE LOCK technology makes wheel removal and installation easier than ever. Paired with the X01 DH 7-speed shifter, X-HORIZON forms the backbone of X-ACTUATION technology—and that means completely smooth shifting action.

Features/Benefits:

X-HORIZON technology provides more responsive shifting and eliminates ghost shifting, a common problem on DH bikes
X-ACTUATION with more cable pull delivers optimized system performance and durability
Two cage lengths for various applications, including abnormally long chain stay growth
EXACT ACTUATION (MTB 10-speed) variant allows upgrades to existing bikes in the aftermarket
ROLLER BEARING CLUTCH with CAGE LOCK sets the industry standard

Technology:

X-HORIZON
X-ACTUATION (7-SPEED)
EXACT ACTUATION (10-SPEED)
X-SYNC
ROLLER BEARING CLUTCH
CAGE LOCK

NEW X01 7-Speed Trigger Shifter

Harnessing SRAM’s 1X X-ACTUATION technology, the X01 DH trigger shifter delivers precise and dependable 7-speed performance. With ZERO LOSS, the cable engages instantly so you shift faster. And with multi-adjustable triggers, you shift from whatever position fits perfectly with the way your ride. The shifter’s aluminum cover and adjustable forged aluminum pull lever bring the strength and durability you need to conquer the toughest terrain.

Features/Benefits:

SRAM 1X X-ACTUATION for precise and dependable 7-speed performance
Multi-adjustable trigger shifter
MatchMaker X compatible
ZERO LOSS Engagement for fastest shifting
Aluminum cover and adjustable forged aluminum pull lever
Includes discrete clamp

Technologies:

X-ACTUATION
ZERO LOSS
MatchMaker X Integrated

PC-XX1 Chain

Go further with the XX1 chain that’s engineered to endure the toughest rides. Built with SRAM’s HARD CHROME technology, the XX1 chain includes a wear-resistant finishing process on the inner links and rollers that brings maximum strength and wear resistance so that you can conquer any terrain.

Features/Benefits:

1X specific chain
HARD CHROME finish provides maximum strength and wear resistance for improved chain life
11-speed power lock

Technologies:

X-SYNC
HARD CHROME

XD Driver Body

The XD driver body lets you take full advantage of the power and range of your SRAM cassette. The improved interface offers a tighter cassette-to-driver-body fit. With the XD driver body, SRAM has established a single universal mounting system for cogs with less than 11 teeth.

Features/Benefits:

Driver body design that lets riders tap into the power and range of the SRAM cassette with a 10-tooth small cog
Provides a more stable hub connection
XD driver body is 6-8g lighter

SRAM X01 DH 10-Speed

SRAM X01 DH 10-Speed Setup:

High performance shifting engineered for DH bikes
Optimized gearing for DH
Lightest crank, lightest cassette, lightest shifter, lightest group
Better overall system durability
All X0 DH cranks get upgraded to X01 DH cranks with X-SYNC rings
Based on our 1X philosophy of a dedicated system, X-SYNC, X-HORIZON, X-ACTUATION
10-tooth cog allows smaller rings for more ground clearance

Components:

X01 DH X-SYNC Carbon Crank
SRAM xg-1070 10-Speed Cassette
X01 DH X-HORIZON 10-Speed RD
X0 10-Speed Trigger Shifter
X0 10-Speed Grip Shift
SRAM pc-1091 10-Speed Chain

X0 10-speed Trigger Shifter

Pair the X0 trigger with the MatchMaker X clamp to streamline your handlebar setup. The X0 trigger maintains the legacy of X0 shifting with features and technologies optimized for SRAM EXACT ACTUATION.

Features/Benefits:

New smaller design with adjustable pull lever
SRAM’s EXACT ACTUATION for precise and dependable 10-speed performance
The first patented multi- adjustable trigger shifter which allows for precise rider fit
MatchMaker X compatible
Colors: Silver, Black and Red
Weight: 232g (per pair)

Technologies:

EXACT ACTUATION
ZERO LOSS
MatchMaker X Integrated

X0 10-Speed Grip Shift

Grip Shift by SRAM. 10-speed. Three rows of ball bearings for smooth shifting action. Full-metal shift indexing. Integrated lock-on grip design. Unrivaled.

Features/Benefits:

EXACT ACTUATION for precise and dependable 10-speed performance
SPEED METAL shift indexing
ROLLING THUNDER ball bearings
JAWS lock-on grip technology
Includes lock-on grips
Colors: Silver and Red
Weight: 287g (clamps, cables, and JAWS lock-on grips)

Technologies:

JAWS
ROLLING THUNDER
SPEED METAL
EXACT ACTUATION

SRAM PG-1070 10-Speed Cassette

The PG-1070 cassette’s semi-spidered design maintains a high level of shifting performance. Our cog set features a semi-spidered construction for a maximum stiffness to weight ratio and is available in twelve optimized configurations to best match a wide variety of uses. To help you in the toughest climbs it is now available in the 12-36 ratio.

Features/Benefits:

Semi-spidered design maintains a high level of shifting performance
Twelve optimized configurations to best match a wide variety of uses
Weight – 359g (12-36)
Gear Ratios – 11-23, 11-25, 11-26
Speeds – 10
Recommended chain – PC-1090R, PC-1090, PC-1070, PC-1050, PC-1030

Technologies:

PowerGlide II

SRAM PC-1091 10-Speed Chain

The PC-1091 chain offers more heavily chamfered outer plates for improved shifting and quieter running. Other advancements include an inner plate finish plus chrome hardened pin construction, both for longer chain life.

Features/Benefits:

Heavily chamfered outer plates for improved shifting and quieter running
Inner plate finish plus chrome hardened pin construction

X01 DH 7-Speed Specifications

X01 DH Carbon Crankset

Variants: BB30 and GXP: 30, 32, 34, 36, 38
Weights: 740g with BB
Technologies: BB30, GXP and X-SYNC
Speeds: SRAM 1X
Compatibility: 11-, 7- and 10-speed X-SYNC
Materials: Carbon composite/ aluminum spider; AL-7075-T651 rings
Hardware: AL-7075-T6; TORX® T25 and 6mm hex bolts
Features: Carbon guard available
Options: 165, 170 and 175mm arm lengths; Red and Black
MSRP: GXP: $315, € 280 / BB30: $347, € 310

X01 DH X-HORIZON Rear Derailleur

Variants: Horizontal Parallelogram design
Weights: Med cage RD – 263g / Short cage RD – 257g
Technologies: X-ACTUATION, X-HORIZON, X-SYNC, ROLLER BEARING CLUTCH, and CAGE LOCK
Speeds: 1X7
Compatibility: X-ACTUATION
Materials: Aluminum outer cage
Hardware: Stainless steel
Features: Cartridge bearings
Options: Red and Black
MSRP: $277, € 245

X01 DH Trigger Shifter

Variants: 7-speed
Weights: 91g
Technologies: X-ACTUATION, ZERO LOSS and Matchmaker X Integrated
Speeds: 7-speed
Compatibility: X-ACTUATION
Materials: Aluminum cover, adjustable forged aluminum pull lever
Hardware: Aluminum, stainless
Features: MMX Compatible
Options: MatchMaker X; Red and Black
MSRP: $143 , € 125

MINI BLOCK Cassette

Variants: 10-24
Weights: 136g
Technologies: X-DOME and XD driver body
Speeds: 7-speed
Compatibility: PC-XX1 chain and XD driver body
Materials: Machined steel with JET finish, alloy spoke protector
Features: XD driver body
MSRP: $303, € 269

PC-XX1 Chain

Variants: 11-speed
Weights: 252g
Technologies: X-SYNC and HARD CHROME
Speeds: 11-speed
Compatibility: X-SYNC and 1X11 X-ACTUATION
Features: 11-speed power lock
MSRP: $63, € 57

X01 DH 10-Speed Specifications

X01 DH Carbon Crankset

Variants: BB30 and GXP: 30, 32, 34, 36, 38
Weights: 740g with BB
Technologies: BB30, GXP and X-SYNC
Speeds: SRAM 1X
Compatibility: 11-, 7- and 10-speed X-SYNC
Materials: Carbon composite/ aluminum spider; AL-7075-T651 rings
Hardware: AL-7075-T6; TORX® T25 and 6mm hex bolts
Features: Carbon guard available
Options: 165, 170 and 175mm arm lengths; Red and Black
MSRP: GXP: $315, € 280 / BB30: $347, € 310

X01 DH X-HORIZON Rear Derailleur

Variants: Horizontal Parallelogram design
Weights: 263g (mid cage)
Technologies: EXACT ACTUATION, X-HORIZON, X-SYNC, ROLLER BEARING CLUTCH, and CAGE LOCK
Speeds: 1X10
Compatibility: EXACT-ACTUATION
Materials: Aluminum outer cage
Hardware: Stainless steel
Features: Cartridge bearings
Options: Red and Black
MSRP: $277