Musing on the Focus Sam2

[Captain_Kadaver]

After watching the review of the new Focus Sam2, and seeing the ability to swap out between a full 29'er and a mullet, I thought, what a bike! ... I could throw a 29'er on the back and ride my local trails and go on touring adventures, then the next weekend I could thru a smaller wheel on and go to the bike park ..... but then I thought would you tho? ... would you bother?, isn't it better to get to know how your bike feels rather then swapping it up each weekend ......

 

[Zimmerframe]

would you bother?, isn't it better to get to know how your bike feels rather then swapping it up each weekend ......

I guess it's nice to have the option. At least you can swap and change and see what you prefer with wheel size and flip chip position, rather than being constrained.

 

[flash]

The only issue with the ability to change wheels is that the motor wont know the correct wheel circumference when you change. So with the 27.5 you'll get an earlier cut out by a couple of kms than 25. Might annoy some.

Gordon

 

[Philly G]

The only issue with the ability to change wheels is that the motor wont know the correct wheel circumference when you change. So with the 27.5 you'll get an earlier cut out by a couple of kms than 25. Might annoy some.

Gordon

Bosch needs to create a decent app whereby the rider can change those settings, instead of taking it to a shop. I think you can do that with the Speshy app?

 

[R120]

I think you either set it up as a mullet and keep it that way, or dont bother - if it was me I would buy one, mullet it, and be done

 

[flash]

Bosch needs to create a decent app whereby the rider can change those settings, instead of taking it to a shop. I think you can do that with the Speshy app?

Not sure about Specialised but with Shimano, Yamaha, Fazua you need the dealer to set the wheel circumference. Probably so users don't essentially derestrict the bike with super small wheel size inputs. With ST Unlocker you can do it for the E8000.

Gordon

 

[Philly G]

Ah, makes sense!

 

[jerry]

The only issue with the ability to change wheels is that the motor wont know the correct wheel circumference when you change. So with the 27.5 you'll get an earlier cut out by a couple of kms than 25. Might annoy some.

Gordon

I believe thats not correct, it's not wheel diameter-dependant. With Bosch, you can also change the wheel diameter in settings (within certain range), but that doesn't change anything to the cutoff speed.

 

[Philly G]

I believe thats not correct, it's not wheel diameter-dependant. With Bosch, you can also change the wheel diameter in settings (within certain range), but that doesn't change anything to the cutoff speed.

Doesn't it calculate speed by wheel revolutions? Hence the magnet? So a bike that came as 29er is calibrated to that wheel size? Because a 27.5 at the same revolutions is a slower speed? Unless you get a plus tyre that brings the overall circumference to pretty much a 29er?

 

[Macone]

Doesn't it calculate speed by wheel revolutions? Hence the magnet? So a bike that came as 29er is calibrated to that wheel size? Because a 27.5 at the same revolutions is a slower speed? Unless you get a plus tyre that brings the overall circumference to pretty much a 29er?

Yep

 

[Captain_Kadaver]

The only issue with the ability to change wheels is that the motor wont know the correct wheel circumference when you change. So with the 27.5 you'll get an earlier cut out by a couple of kms than 25. Might annoy some.

Gordon

Totally didn't think of this at all Really good point ....

 

[Voluptua]

If the online Kiox manual is to be believed, there's a user-adjustable wheel circumference setting that allows you to amend by +/- 5% . This won't make up for all of the wheel change, but would get close. No need to change back when riding the 29 - just revel in the tiny extra bit of speed. I suppose your ride distance statistics would be a little bit out.

This may not be a feature on the Purion, though