Evolution

Our next generation frameset — the Z5 — is one of the lightest frames ever built, yet still possesses the famous acceleration, lively road feel, and comfort that is the hallmark of a PARLEE. The Z5 combines the best qualities of the Z1 and Z4 using our latest molding techniques perfected in the TT without sacrificing performance, comfort or durability. After the success of our Z4 we realized we could create a lighter weight stock frame while maintaining the same performance. We achieved our weight savings by:

DROPOUTS: We changed from a 2-part forged aluminum to a one-piece carbon fiber dropout.
Savings: 20 grams.

SEAT STAYS: Changed from the wishbone (as used on Z3 and Z4) to the classic, more labor intensive twin stay (with a co-molded carbon brake bridge) of the Z1.
Savings: 25 grams.

BOTTOM BRACKET: Changed the interface from traditional threaded to thread less BB30 interface.
Savings: 30 grams. (This also allows for the use of the new BB30 compatible cranks, some of which are as much as 200 grams lighter than their traditional predecessors.)

LAY-UP SCHEDULE: By carefully examining every square cm of carbon fiber prepreg, we found areas of redundant material that was able to be eliminated. By examining the structure for wasted fiber we are able to have a higher strength at a lower weight, no trade-offs. The benefits include crisper acceleration and better tracking.
Savings : 25 grams.

SEAT LUG: By moving to the next generation mold technology and moving to twin stays instead of the wishbone, we were able to eliminate the seat lug.
Savings: 20 grams.

SEAT CLAMP: Designed and built a carbon clamp that performs as well as its aluminum counterpart.
Savings: 7 grams.

FORK: The reality is that the safety regulations have changed the fork landscape for good such that many forks are no longer available or they are 20% heavier than they were 2 years ago. We found that a gentler taper to the fork, specifically from 1.125" to 1.25" provides all the additional strength needed while improving tracking, handling and weight savings.
Savings: 30 grams.

All these elements add up to (on average) to 140-160 grams of weight savings in the frame set alone over a Z4. Combined with a modern BB30 compatible crank set and the weight savings can be well over 300 grams. There are no downsides to the weight savings. You still get the same PARLEE durability and ride in our next generation Z5. We didn't stop at weight savings. We added our industry first FLEX-FIT platform to the Z5 expanding our range of stock sizes to 10.

The frame geometry chart shown is PARLEE Cycle's standard for the Z5. The Z5 is not available with custom geometry. For custom geometry in a compact frameset, please see our Z1 or Z3 Custom.