People who are happy to buy used PMs will buy whatever is best value and fits their bike and looks nice.
That GXP SRM will only fit certain bikes, only match certain set ups and only appeal to people looking for 130BCD. The red sticker is challenging too but it can be changed - at a price.
If price is dictated by supply and demand there’s just lots of supply because it’s competing against everything - even new stages / vector / whatever in a limited market of people looking for PMs that work with a Sram set up.
Remember - you can fit a Rotor PM if you have a Shimano set up but you can’t fit SRAM because Tarquin on the club run will think you are odd.
So the demand is weak.
Sell the PC7 sperately - you might get £70 for it.
The old SRMs were still valued by track sprinters as they are more accurate for peak power measurements. I think it was the wired ones that made sense for them as the wire units lacked any transmit lag the wireless ones suffered from. Not sure if this is still the case.
People who need an SRM buy a new unused SRM.
People who are happy to buy used PMs will buy whatever is best value and fits their bike and looks nice.
That GXP SRM will only fit certain bikes, only match certain set ups and only appeal to people looking for 130BCD. The red sticker is challenging too but it can be changed - at a price.
If price is dictated by supply and demand there’s just lots of supply because it’s competing against everything - even new stages / vector / whatever in a limited market of people looking for PMs that work with a Sram set up.
Remember - you can fit a Rotor PM if you have a Shimano set up but you can’t fit SRAM because Tarquin on the club run will think you are odd.
So the demand is weak.
Sell the PC7 sperately - you might get £70 for it.