Which type of Alum frame: 6061 or 7005

Wheels of Happiness

Rizal Philippines

4.07.2021

You often seen the grade of Alum used in bikes:   6061 or 7005,  The other MTB is marked 7005?  What does the alum grade mean?

The alloys in the 6061 series are:

      Magnesium - 0.8 - 1.2%

      Silicon           0.4 - 0.6%

      Copper         0.15 -0.4

      Iron               up to 0.7

7005 on the other hand contains:

     Zinc -            4.5%

     Magnesium   1.4%

Which one is better?  It is 6061.  Not because the other number is higher does it mean it is better.  But 7005 is more durable...

Bulk of alum bikes are under the 6061 classification

Reducing the number of bikes

Wheels of Happiness

Rizal Philippines
January 7, 2018

I plan to reduce the number of bikes I have so that  I can focus on a few of them, and have less maintenance time  and expenses:

These are:

                       Fuji SL 1        with Cosmic Wheelset, Campy group set,  super lite
                                              SL 1 frame set, weighs approx 7 kgs;  Conti tires.   I am returning
                                              this to VM who would offer this to his friends or Recyclists
                                              who are interested

                                              I was told by VM before that  the original price was:

                                             Frame      -                P75,000
                                             Campy group set       P100,000
                                             Cosmic Wheelset          80,000
                                             ITM cockpit                  12,000
                                            Ritchey seat post
                                            Selle Italia Saddle             7,000
                                            Total                            274,000

                                            May leave premises at  40% off

                    SAVA 580        Carbon Fiber bike.   Pricing this at P24t with Acera group set
                                              mura  for a carbon fiber bike, di ba.  Parang frame lang price

                     Bianchi Alum bike     With Ultegra group set, Alex Rims 22 wheel set, Conti
                                                      Tires.  Superlight for alum bike  Weighs may be 8 kg.
                                                       Will part at P30t.