Had difficulty with SRAM groupset at S works, spent with the mechanic but finally was able to tune the GS myself

Wheels of Happiness

I had challenges with the SRAM red 10s gs at the S works RB.  First it would not shift to the biggest gear (36t).  I brought the bike to nearby mechanic;  said I need to change the cable:  outer and intter.  Paid him P100.

I brought the bike to the master Mario.  He changed the cable and later recommended that  a cable be brought out from the head set because it crimps the outer and makes the shifting  hard and might damage the interior of the  sti.  He recommended to change the cog to the 26 or 28t and remove the goat link because the larger gear is hard on the RD

I requested Mario while at it to fix the  headset which at times seem to have micro rattling.   Which he did.  He noted the wiggle of the front wheel to which he attributed to busted bearing.   Later on I found out that the QR was not well tightened. Iits OK now

I changed to smaller cog.  But again  it would not shift to the largest  gear (this time 28).  I found out later that I was loosening the wrong limit screw.  For SRAM the low was at the top , and hight was at the bottom.  Then horror of horror, the shifting went down to ontly 4 cogs.   I found out that the outer slipped and the inner cable was loose.   Did some fiddling and got it right.

Now my desire for the electronic gs is not as high anymore.   Because the shifting of the SRAM is now smooth.  Many of those who went electronic are now returning to cable shifters

It is so satisfying to be able to figure out yourself the problems and solving it yourself

Removal and reinstallation of sealed bearings

Wheels of Happiness

Bearing removal and re installation

Wheels of Happiness

Genuine bearings are expensive and the diy home traditional mechanics  recommendation are not recommended because you can wreck the bearing.

You must remove the bearing via bearing removal tool that are expensive.   

      1.  Bearing removal with expanding feet at P440.00 in San Pedro Laguna at Laz

      2.  Pressfit tool with removal seet for 30 and 24 BB costing about P1,400.

      3.  Pure press fit with various drifts:     P1,200 at Lazada.

It is OK to buy this if you have a bike shop and /or bike mechanic.   But for a DIY who encounters problems with bearing once or twice every two years, a rubber mallet, drifts (from socket tools) a flat screwdriver may do the job.

DIY removal:

     1.  Remove the scewer;

     2.  Remove the cones

     3.  For hubs,  remove the axle then tap tap the screwdriver from the inside.  Do the same for other 

          bearings

     4.  For the free hub, push the bushing to other side to access the one side of the bearing.  Tap the                      bearing at four corners.  Tap tap lightly.  Do the same for the opposite bearing  Note for the

          rear hub there are 4 bearings:   2 for the main hub, and 2 for the free hub (where you attach the 

          cog.)

          While at it, remove the grime and stuck grease at the pawls.  Degrease.   Remove rust from

          round spring as the case maybe.  Relube:   light grease and oil (even Shimano mineral oil)

DIY reinstallation

    1.  For front hub, tap tap one side.  Then install the axle.   Use a drift:   a piece of tube or socket

         of same same size:  22 mm to drive the bearing in.  Tap tap slowly.  Make sure the bearing

        does not tilt

   2.  For the rear hub, tap tap one bearing.  For the other side, insert the hub, then the bearing then tap tap.

       Bearing sizes:

      6000, 6002, 6802, 6902.   There may be other sizes.   Find out from old bearings the numer