Showing posts with label Kenda. Show all posts
Showing posts with label Kenda. Show all posts

Wednesday, February 14, 2018

Saving dynamic weight from your wheelset

Wheels of Happiness

Rizal Philippines
February 14, 2018


If you really want to upgrade your bike and ride, one of the investments you can make is on wheelset.  And after the wheelset, you must invest in tires and tubes.

Now may be you have a 1.4 carbon wheelset and you invest in cheap tires that weigh 400 grams each  x 2 =  800 grams) and tubes that weigh 150 grams each (x 2 = 300 grams) and you end up with heavy rotating mass:    1.4 +  .8 + .3 kg =  2.5 kg wheels.  Your tires and tubes could easily weigh your light
wheelset by more than 1 kg.  Rotating mass is x 3.  That is additional 3 kg when you accelerate or climb.  That is a lot x number of rotations.  It could be as much 5 tons in a ride.

But let us say you buy  Conti Supersonic  at 180 grams x 2 =  360 and lightweight butyl tubes at 90 grams x 2 =   180, your additional weight to your carbon fiber wheelset is only 540 grams and your total weight for the wheels is only 540 + 1400 =  1,940.  You save about 500 grams the same weight you save in buying:   the carbon wheel set, or the carbon frame.

Kenda too sells lightweight Kenda Kaliente wheels (200 grams or less) and superlight tubes (90 grams) Meron sa Missing Link

Butyl tubes are recommended to make your wheels light.  Now you have Silca butyl tubes  (made in Thailand in collaboration with Vittoria)




Lightweight Maxxis tubes only 90 grams and P239.00 php each PUNCTURE RESISTANT PA!!

Tuesday, January 23, 2018

Am starting to implement weight slashing measures to lighten up my bike

Wheels of Happiness

Rizal Philippines
January 22, 2018

As I accompanied Vhen to  Missing Link bike shop in Eastwood, I saw lightweight parts that are parts of my recent post to reduce bike weight:

1.  Superlite tubes by Kenda  @ P280.00 each (They discounted mine to P240.00 dahil bumili ng Ridley frame kasama ko.
2 Salsa Gel Cork tape  (baka mga 50 grams lang ito)   P700.00 discounted price.
3.   Jagwire Road Pro Kit (Celeste green ang color)   30% lighter daw cable outer, Teflon coated ang cables @ P1,100.  {{1.350) listed price)

There was a Kenda Kaliente tire priced at P2,000 that weighs only 190 grams, lighter than GP 4000.  Later na lang 23C kasi   Kenda Kaliente Superpro  (maproblema?)

So how much can you save with light tires:

                Tires    Ordinary tires 400 grams -   190  -   210 grams  x 2   =  420 grams
                Tubes   Ordinary        150 grams       90         60 grams x 2   =  120 grams

                                                                  Thats                                       540 grams

 Thats about the same weight you chop off a Shimano Durace   vs 105;   or a carbon frameset

I also found out that the weight of SRAM red is lesser than Durace;   less than 2 kg (1,900) the latest which cost P100,000+ is 200 grams lighter.  I am looking at 2nd hand that is affordable

Total cycling component weights

SRAM red for sale by Bjay