KTM Macina dual hs - the eagle has landed!!

[Electrifying Cycles]

Sounds like a nice bike this.
What size are the 3 chain rings on this bike?

Hi
Detailed information on dual drive is available here:
DUALDRIVE 24 | SRAM

Will get back to you regarding the chain ring - answer 42 (only one chainring as 3 hub gears and derailleur, see link above for more info about how dual system works). Currently got different models in stock but looking to replace with Macina HS as we were so impressed by the bike.

 

[Shroppielass]

Ps.. no smoke without fire these ends

Here be dragons

 

[Taff]

Hi
Detailed information on dual drive is available here:
DUALDRIVE 24 | SRAM

Will get back to you regarding the chain ring - answer 42 (only one chainring as 3 hub gears and derailleur, see link above for more info about how dual system works). Currently got different models in stock but looking to replace with Macina HS as we were so impressed by the bike.

Well that's got me stumped.

 

[Artstu]

Well that's got me stumped.

A internal 3-speed hub with an 8-speed cassette

 

[Taff]

A internal 3-speed hub with an 8-speed cassette

Any idea of equivalence with chain ring sizes?
22 32 42?

 

[Artstu]

Any idea of equivalence with chain ring sizes?
22 32 42?

Something similar I expect, probably a fair bit higher at the top, a massive 654% range which is over twice what my 8-speed hub has, and I certainly wouldn't find that lacking on an ebike.

Perhaps a KTM site lists the ratios?

 

[Taff]

Something similar I expect, probably a fair bit higher at the top, a massive 654% range which is over twice what my 8-speed hub has, and I certainly wouldn't find that lacking on an ebike.

Perhaps a KTM site lists the ratios?

Couldn't find anything other than the 'Kettenradgarnitur' is 42.

 

[Electrifying Cycles]

A derailleur bike with 24 gears would have three chain rings. However the dual system has three hub gears instead combined with 8 derailleur gears.

The catalogue below lists the information for chain rings on each bike. Panasonic hub drives have their chain ring numbers listed at the top and Bosch bikes at the bottom (second column, third row on most bikes)
KTM e-Bikes 2013

 

[flecc]

A derailleur bike with 24 gears would have three chain rings. However the dual system has three hub gears instead combined with 8 derailleur gears.

SRAM also make 27 and 30 gear versions with 9 and 10 rear sprocket cassettes mounted on their 3 gear hub. Combining these with a three chainwheel front derailleur could achieve up to 90 gears, enough to satisfy the most ardent gear freak, but of course the ratio duplications would be numerous!

 

[barrycoll]

just to add my 2p's worth to the mix, I have to say that my KTM Machina Race 26, with a simple 9 speed derailleur and just one Rapid fire shifter, works very well....

I keep having to remind myself that when faced with a head wind an increasing gradient, I have a choice of of either changing down one cog, and using my energy side of the hybrid, or using my left thumb and engaging Eco or Tour, while keeping the same gear....in both cases the amount of Push would stay the same...
so I have found that 9 well spaced cogs cover all eventualities, without the messy overlap or complication of 8X3...

as others have found, these centre drive bikes ride very well unpowered, but the power is great as a Get Out of Jail Free card, when the energy is well and truly spent

cheers barrycoll