What is the difference between ISO and JIS?

What is the difference between ISO and JIS?

ISO and JIS are very similar – the angle of the taper is the same, but the ISO spindle ends are a little slimmer. In a pinch, you sometimes can use a JIS spindle with an ISO crank. To compensate for the wider JIS taper, select a spindle that is about 1-2 mm shorter. The taper of your cranks: JIS or ISO.

Is Shimano ISO or JIS?

Shimano and most other Asian manufacturers employ the JIS standard. Campagnolo and other European manufacturers use ISO.

What is JIS crankset?

J.I.S. J.I.S. is the Japanese Industrial Standard, and is generally used on square taper cranks made in Asia. All of the common black spindles identified with standard numbering use the J. I. S. taper. Many of these have a threaded boss for a nut on each end, rather than being hollow and threaded internally for a bolt.

Are Shimano bottom brackets JIS?

Most Square Taper Bottom Brackets are ISO nowadays, with JIS only featuring on Miche, Ritchey, Shimano and Sugino Standard (not SG75).

Are hollowtech cranks better?

Hollowtech cranks are noticeably stiffer and usually lighter weight. Square taper cranks very often develop a creaking sound. This doesn’t affect performance.

What kind of bottom bracket does a JIS crank use?

JIS square taper bottom brackets are easily distinguished due to their black color and standard numbering system. It’s not a good idea to mix the standards ie. a JIS crank on an ISO spindle or the other way round.

What’s the difference between JIS and ISO taper brackets?

Campagnolo and other European manufacturers use ISO. JIS square taper bottom brackets are easily distinguished due to their black color and standard numbering system. It’s not a good idea to mix the standards ie. a JIS crank on an ISO spindle or the other way round.

What kind of bottom bracket do I need for a J.I.S.?

Some older Shimano Dura Ace used a shorter taper than most other cranks. Most modern cranks will bottom out on the spindles from these cranks A practical option to keep J.I.S. low profile cranks in service is a Phil Wood bottom bracket with a J.I.S. Low Profile taper.

Are there bottom brackets that are Press in?

“Threaded bottom brackets are compatible with the largest range of cranks [and] some press-in bottom brackets have a reputation for creaking,” Santa Cruz global marketing manager, Will Ockelton, tells BikeRadar.