Bike Porn

1x9

 While new complications are often for the better, because they make our parts stronger, more adaptable, and often lighter weight, they can bog us down mentally and take some of the simple fun out of riding. This is where 1X or single chainring drivetrains come in. The concept isn’t totally new, but these days there are quite a few modern products that make running a single ring drivetrain a lot more easy to set up and ride efficiently.

Shimano’s XT level M770 cassette is an excellent 9-speed choice. 

High quality Mega-9 gearing with close ratio sprockets and Hyperglide design for efficient shifting.

Six largest sprockets are mounted on a lightweight alloy carrier to reduce weight and increase rigidity

265g (11-36T)

 

X9SL Ti Nitride

SL Chain sets a new standard with weight reduction, improved shifting performance & enhanced durability.

Titanium Nitride Gold Coating, Less friction, low maintenance. 

 

Chainring technology and sizes have changed a lot with the advent of 1X drivetrains. Most riders are using single ring specific chainrings because they are often built more beefy and have different tooth profiles that are better at retaining a chain. The most advanced chainrings available are designed to be ran without a chainguide using a clutch type derailleur.

 

Full CNC made narrow wide chainring for 1x system. Narrow wide teeth together with our snug fit wave design have extreme chain retention qualities. Additionally each tooth has CNC cut teardrop holes for mud clearance. Special made for P.C.D 104mm x 4 arms standard.

Weight: 55g (32T)

Still the same dirty bike....

Switched the tires Continental Grand Prix + tubes Continental Race 26
the New City Ride setup bring the weight of the whole below 8750g

My old dirt bike: Blow Ten


Cannondale Killer V.
brought in 2002.
I've always been a total fan boy of Cannondale mountain bikes, and there is this frame that always stuck in my head, the Killer V hard tail frame.
The Killer V frame was unique in it's day for it's top tube design. and share the "legend" position for me in the Cannondale history side by side with the Delta full suspension frame.
the idea i had with this bike was "Blow 10" (below 10).
brought it cheap and switch the parts with some cheap but relatively lighter parts in 2nd hand market or 3rd party factory outlet, to make it below 10kg with a budget below 10k hkd....
i recently (finally) archived this objective with a new brakes...
however.... without made the total under 10k hkd.... i made it finally within 10yrs.....

the new KCNC V-B1
levers 46.2g/pair
+
SRAM Attack shifters: 206g/pair
+
EVA foam grips: 14g/pair
on the Easton EC70 580mm handle bar: 128g

 v-brakes 206.5g/pair

Monocoque carbon sanddle

Friends call it a Razor Blade.
i trend to agree, he he he!!!
but it's actually more comfortable than it looks!

for long journey i do switch to a Selle Italia Flite Kevlar: 221g

full carbon monocoque sanddle and rails: 110g
+
Easton CT2 - 350mm seatpost: 188g

SARS flat pedals: 198g/pair
same factory from Wellgo - WR-1 with different logo marking.
there is a even lighter version with Titanium shaft (175g)....
but it's more than double the price with just few g less...

Shimano XTR Rapid Rise (reverse action) M953 Rear Derailleur (GS/Mid cages)w/ Alu cable stop bolt: 204.5g
+
Shimano Dura-Ace 12-27T: 174.5g
+
Shimano HG72: 278g

The Shimano XTR RD-M953-GS Rapid Rise rear derailleur is no longer available as a new part since 2001. The shifting performance and advantages the Rapid Rise system offered were a step above standard shifting systems.

The concept of Rapid Rise seems confusing until you see it in operation. On a normal shifting system the spring tension pulls the derailleur to the outside (small) of the rear chain ring with each click of the shifter. To move the chain to the inner (largest) chain ring, you must push the shifter with your thumb and overpower the spring tension to shift. This works well on road bikes or simple dirt roads, but when climbing steep hills or other difficult terrain shifting performance begins to suffer. Missed shifts occur, the dreaded jumping gears can pop up, and sometimes your chain just refuses to shift on a hill.

With Rapid Rise the spring tension pulls the derailleur inwards and towards the largest rear chain ring. Your thumb and gravity shift the chain down onto the increasingly smaller rings. This helps shifting performance immensely, and makes up-shifting under a load possible! The spring action gives the chain a strong and steady pull whenever you shift up, instead of your thumb doing all the work.