Ofna Hyper 7 2-speed transmission ?s

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

GTD - 15 Sep 2006 05:47 GMT

I'm kinda looking at this:
http://www.acehardwarehobbies.com/2.2/catalog/product_info.php?cPath=88_478_126_
230&products_id=5731

But I don't really understand.. . .does it automatically shift like
monster truck transmissions do, , or is it manual? I notice something
in the pics that look like ball-swivels, ,, not sure how it all works.
.. Any help will be appreciated. Thanks.

Reply to this Message

M78Ultra - 15 Sep 2006 15:02 GMT

It will automatically shift when a certain rpm is reached.
I don't suggest using these style 2 speeds for for offroad use in a buggy. I
have seen two sets of them for the 9.5 shred already. (part #40111)
They seem to hold up for onroad where backlash is at a minimum. If you look
at the spurs notice how thin they are compared to the clutch bell. The spurs
only ride on about 1/3rd of the bells teeth.

> I'm kinda looking at this:

http://www.acehardwarehobbies.com/2.2/catalog/product_info.php?cPath=88_478_126_
230&products_id=5731

> But I don't really understand.. . .does it automatically shift like
> monster truck transmissions do, , or is it manual? I notice something
> in the pics that look like ball-swivels, ,, not sure how it all works.
> .. Any help will be appreciated. Thanks.

Reply to this Message

Doc - 15 Sep 2006 19:42 GMT

> It will automatically shift when a certain rpm is reached.
> I don't suggest using these style 2 speeds for for offroad use in a buggy.
[quoted text clipped - 5 lines]
> spurs
> only ride on about 1/3rd of the bells teeth.

I'm not a huge fan of the dual-gear clutchbell/spur combos myself; gear mesh
is never quite right. Also, on vehix with a center diff methinks the gear
operation might be a little bit irregular d/t f/r rotational differences.

Doc

////////////////////////////////

>> I'm kinda looking at this:
>>
[quoted text clipped - 4 lines]
>> in the pics that look like ball-swivels, ,, not sure how it all works.
>> .. Any help will be appreciated. Thanks.

Reply to this Message

GTD - 15 Sep 2006 22:21 GMT

>> It will automatically shift when a certain rpm is reached.
>> I don't suggest using these style 2 speeds for for offroad use in a buggy.
[quoted text clipped - 11 lines]
>
>Doc

Ok. . .My kid has an Ultra Pro Mbx from ebay due to be here at any
moment that has the 2-speed upgrade. Just looking for something to get
the edge on him a little. . .. Thanks for the info. . .

Reply to this Message

Model Forum / Radio Controlled / Land Models / September 2006

Ofna Hyper 7 2-speed transmission ?s