Seven Cycles --XX Grade

1. Asymmetric Fastback Dropouts

The non-drive side uses a standard flat mount dropout, but by combining an asymmetrical design through axle dropout on the drive side,Weight reduction of about 60 gramsTo realize.

The dropout on the non-drive side has a brake caliper pedestal, so the length from the center of the axle to the end of the brake rotor, that is, about 10 cm, is required. This is a very long dropout, much heavier than a tube of the same length. On the drive side, on the other hand, a dropout of 4 cm from the axle is sufficient. The asymmetrically designed dropout is not only lightweight, but also stiff. (Seven dropouts are the most rigid in the industry)

2. Asymmetric Chain Stay

Asymmetric chain stayWeight reduction of about 6 gramsAt the same time, it increases the rigidity of the drive train.

Since the dropout originally requires a chain stay with independent left and right design, the performance can be raised to the limit by appropriately designing the clearance to parts such as the chain ring, tire, and crank on each of the drive side and non-drive side. I can. The benefit of this asymmetrical design is that the weight reduction of a few grams is a bonus, and the rigidity is greatly increased.

3. Modified BB Shell

By cutting further into the BB shellApproximately 14 g lighterTo do. This has no adverse effect on the frame.

At Seven, cutting / threading to the BB shell is performed after welding. This creates a truly distortion-free platform, but by applying a higher level of processing than usual in this CNC cutting process, excess mass is scraped off without compromising durability or rigidity.

4. Modified Breather Hole

All tubing that makes up the frame has holes called breather holes that allow the inert gas required for welding to pass through. Expand this hole to the maximum without compromising durability and rigidity,Weight reduction of about 12 gAchieve. It's a part that can't be seen from the outside, but I won't cut corners.

5. XX Tube Butting

By butted processing on the tubeWeight reduction of about 30 to 45 gIt will be.

Seven has introduced a new butted processing system, which makes it even lighter on average by about 40 g than the original butted processing that has been repeatedly refined.
Of course, this processing is optimized based on the type and purpose of the frame, input from the rider and body specifications.

6. Tube Profile

By arranging the selection of tubes that make up the frame and their profiles (diameter, wall thickness, etc.)30-60 g lighterAchieve.

When upgrading to the X-series, Seven's unique approach maximizes the true potential of US-made titanium tubing.

7. Flat Mount Brake Adapter

Seven original flat mount brake adapter is further cut down without impairing braking force and responseWeight reduction of about 13 gTo do.

8. Compact Frame Design

By making the frame design slightly compact,Weight reduction of about 18 gTo realize.

The sloping of the top tube is increased by about 2 degrees from the standard design of Seven. This increases the rigidity, and it is possible to scrape off excess parts in various places.

1. Improves performance.
The lighter it is, the better it accelerates, the better it stops, and the easier it is to control. Instead of turning by steering, it becomes easier for you to turn with your body.

2. Lighter weight can increase suppleness.
Being supple can be a good thing, but it is often considered a bad thing. For example, early titanium bikes were rated "too soft" because of their material properties. In particular, the evaluation of a bike that lacks lateral rigidity is negative. On the other hand, the vertical supple bike shows excellent characteristics in terms of traction and followability, and riders of all performance levels appreciate its shock absorption performance and supple and comfortable ride.

3. Generally, weight reduction is an act of shortening the life of a product.
Certainly, products that put lightness first will cause many warranty issues.
All Seven frames come with a lifetime warranty. This also means that Seven has not made any weight reductions that would shorten its useful life. This is also the reason why Seven bikes have never been the lightest on the market in history. Seven Cycles is not interested in weight reductions that reduce durability and safety.