My Bridgestone MB-5 currently has a 7-speed rear wheel. I'd like to convert it to a 10-speed. Is this possible? Is it practical?

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    What is 7 x 1.5? What is wheel casket? 2 x 10 sounds like a drivetrain. – Batman Jul 24 '15 at 1:43
  • Yes, you need to clarify. Are you talking about changing the sprocket cluster ("cassette") on the wheel? If so, what change precisely are you proposing? – Daniel R Hicks Jul 24 '15 at 2:30
  • right now i'm running a 2x8 set up my cassette is 7. my sifters are a shimano sora 8x3 . May be all I need to to find some older road bike derailluer sp that are 3x8 ? – James H Bloom Jul 24 '15 at 20:26

You may be interested in this .. The 1992 Bridgestone catalogue (8meg PDF)

The bike is the lower end of the range (MB-6 being lowest), meaning its not worth that much and never started out as a great bike. As its steel (one redeeming feature), its possible to cold form the frame to widen the rear drop outs to take a 10speed, so technically its possible......

Practically its not worth it. The bike is old and low end. To upgrade to 10Speed you would need

  • Complete Wheel (at least a new Hub and cassette)
  • Dérailleur
  • Shifters
  • Chain rings


  • Shifter Cables
  • Chain

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