Finger on the Pulse part 1

Finger on the Pulse part 1

In late 2016 we sold a VOLT Pulse X to a customer who likes to go out cycling every day, but wasn’t fit enough to do so on a standard bicycle. He already owned a VOLT Metro that he had bought some years earlier, but felt that the time had come to update it to a better and newer model. We fitted different grips and bar ends at the customer’s request so that he could vary his hand position on the bars to give his back and shoulder a rest.

He took the bike home and rode it around every day (testified by the fact that when the bike came back here in about April 2107 it had almost 2000 miles on the odometer!) on some quite hilly terrain, and was very pleased with the bike’s performance and the powerful disc brakes which were very reassuring. As the miles accumulated, he had experimented with different positions of the handlebars and bar ends (the bike has an adjustable stem too) but didn’t feel as if he had yet found the perfect combination.

In Feb/March this year he reported that he felt the gearing was a bit high for the kind of terrain that he was riding on, and asked if it was possible to have different (lower) ratios. He also reported that the pedal assist was a bit hit and miss lately (like a misfire on a car). The prime candiates for this problem were either the sensor or the magnetic disc that rotates on the crank. As the magnetic disc appeared to be in good order it was decided to replace the sensor (which VOLT supplied under the warranty) – an easy enough job to do.

The original setup on the bike was a single chainwheel on the front which was a 47/48 tooth if memory serves me correctly, with a wide ratio 9 speed Deore cassette on the rear. We decided that there was little that could be achieved in changing the rear cassette, so offered instead to change the front chainring for a smaller one. The customer agreed to this and it was decided to try a 36 tooth chainring, which was duly ordered and delivered.

A few weeks later the bike came in to have the new 36 tooth chainring and the new sensor fitted (the customer does not live locally to the shop so calls in if he is passing this way). The new sensor worked perfectly so was obviously the root cause of the ‘misfire’ he had experienced. Bike reassembled and tested, and off he went, reporting back after a few rides that the new gearing was ‘spot on’ for what he wanted to do and the bike was running very sweetly again.

Part 2 to follow….

 

Finger on the Pulse part 1

 

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