Torque Spec and Details-
LINK download will be in hard drive
Model 01 Torque Spec Sheet
TORQUE SPECIFICATIONS AND CONCEPTS
This article will discuss the basics of torque and torque wrench use on your Denago Ebike.
INTRODUCTION TO TORQUE
Torque is defined as the amount of rotational force at the point of application. It is critical understand and follow the guideline of spec. A bicycle has many different fasteners (nuts and bolts) that are used to assemble the bike, connect the parts, and add features to your bicycle. It is important to note that different materials, bolt and nut sizes in diameter and length and use of product are some of the things that play a role in this critical spec and is important to monitor and check frequently.
We are providing some addition supporting information along with recommended torque specification. If you are unfamiliar, uncomfortable or do not believe you can correctly follow this guideline please seek help from your local professional bike shop of contact us at cs@BIKE.com or 1-877-755-2453(BIKE).
It is important to follow safety guidelines and remember too much tightening and you are stretching/flexing the fastener, and this could cause failure. To loose or not enough tightening and the fastener could come loose and fall apart or break. If something seems to be binding or loose stop riding immediately and check the fastener to insure it is at the correct torque specification
It is commonly believed that bolts and nuts often come loose “on their own”, for no apparent reason. However, the common cause for threaded fasteners loosening is simply lack of tension/ not meeting torque specification. God guidance is any fastener should be tightened as tight as possible without failure of the thread or the component parts. This means the weakest part of the joint determines the limits of tension, torque.
Torque for mechanics is simply a twisting or turning motion around the axis of the thread. This resistance can be correlated to, but is not a direct measurement of, fastener tension. Generally, the higher the rotational resistance, the greater tension in the threaded fastener. In other words, the more effort it takes to tighten a bolt, the tighter it is.
Torque is measured as a unit of force acting on a rotating lever of some set length. In the bike industry and elsewhere, the common unit used to measure torque is the Newton meter (abbreviated Nm). Sometimes in the United States the inch-pound (abbreviated in-lb.) is used. It is possible to convert between the various systems:
- Nm = in-lb x 0.113
- Nm = ft-lb x 1.356
- Nm = kg-cm x 0.0981
TORQUE WRENCH TYPES
Torque wrenches are simply tools for measuring resistance to rotation. There is a correlation between the tension in the bolt and the effort it takes to turn it. Any tool, even a torque wrench, should be used with common sense. A cross-threaded bolt will not properly tighten even with a torque wrench. The mechanic must be aware of the purpose of torque, and what torque and fastener preload are doing to the component joint. Please use a BEAM STYLE or CLICK STYLE Torque Wrench