Shimano UN300 BSA axle on 68x117 mm, without square screws
Encased square center axle BB-UN300, length 117mm, BSA English thread, without clamping screws for cranks. For a frame width of 68mm
Type: MTB, Total package weight: 120g, Length/Diameter: 68x117mm, Mounting method: BSA, Square, gray/black, without screws, Material: Steel / Plastic
| Suitability | MTB |
| Mount type | BSA |
| Axis type for crankset | Square |
| Frame width | 68 mm |
| product ID | 114890 |
WARNING
For information on installation, adjustment and replacement of the products which are not to be found in the user's manual, please consult the place of purchase or a distributor. A dealer's manual for professional and experienced bicycle mechanics is available on our website (https://si.shimano.com).
For safety, be sure to read this "user's manual" thoroughly before use, follow it for correct use, and save it so that you can refer back to it at any time.
The following instructions should always be followed in order to prevent personal injury, physical damage to equipment and the surroundings. The instructions are classified according to the degree of danger or damage which may occur if the product is used incorrectly.
DANGER – Failure to follow the instructions will result in death or serious injury.
WARNING – Failure to follow the instructions could result in death or serious injury.
CAUTION – Failure to follow the instructions could result in personal injury, or physical damage to equipment and surroundings.
WARNING:
Do not disassemble or modify the product. This may cause the product to not operate correctly, and you may fall unexpectedly and suffer serious injury.
Before riding the bicycle, check that the crank arms are not cracked. If there are cracks, the crank arm may break and you may fall off the bicycle.
Be careful not to allow parts of your clothing to get caught in the chain during riding. If you do, you may fall off the bicycle.
CAUTION:
Be careful not to touch the gear teeth. There is a danger of injury.
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