[python] Re: minimum inseam
- From: dirk.bonne@xxxxxxx
- To: python@xxxxxxxxxxxxx
- Date: Thu, 22 Nov 2007 09:54:33 +0100
Hoi
Okay, so the FWA-BB distance is a not a problem because you could just
put the BB higher, possibly rising the seat too if otherwise the
difference seat-BB height is getting to large to be comfortable.
There is an article by Bert Hoge, who did energy measurements on
recumbents and also measured seat-BB differences aspect of it (too low
or too heigh is bad from aero aspect):
http://www.ligfiets.net/redactie/meetligfietsengels.pdf
He talks about +15cm -> +25cm ideal, when the seat is reclined at
21degrees. Usually seats are a little more upright (mine is at
30degrees) and so you could go a little higher.
Dirk
Dirk Steuwer wrote:
> HI,
>
>
> Isn't it also the case that the higher the crankset is in relation to front
> wheel axle (FWA), the closer it can be to the rider (given that the pivot
> stays were it is, seat hight remains constant, etc)?
>
>
> DirkS
>
>
> On Wednesday 21 November 2007 21:14:28 dirk.bonne@xxxxxxx wrote:
>
>> Hoi Jürgen,
>>
>> I thought that the minimum inseam was for reaching the cranks? Is it
>> really about the chainline then??
>>
>> confused,
>> dirk
>>
>> Jürgen Mages wrote:
>>
>>> Hej Dirk,
>>>
>>> I checked the wiki today. Amazing, how fast it grows. It's a great
>>> medium to unite lots of peoples knowledges.
>>>
>>> My wife is riding the P1 (2x26") and she has an inseam of 84. The
>>> crank length is 170 mm. An inseam of 83cm might be possible but only
>>> with hub gearing. Otherwise the chainline gets too extreme.
>>>
>>> Keep up the good work,
>>> Jürgen.
>>>
>>> On 21.11.2007 20:35, dirk.bonne@xxxxxxx wrote:
>>>
>>>> Hi listies,
>>>>
>>>> I am trying to find out the minimum inseam fro 26" tires. Jürgen talks
>>>> about 86cm, but is this the minimum? The reason is that I want to cook
>>>> up following table:
>>>>
>>>> http://python.data.he-hosting.de/Wheel_Sizes
>>>>
>>>> I think if I have 1 minimum inseam for a particular tire and crank, I
>>>> can deduct the other values somehow.
>>>>
>>>> thanks!
>>>> Dirk
>>>>
>>> ============================================================
>>>
>>> This is the Python Mailinglist
>>>
>>> //www.freelists.org/list/python
>>>
>>> Listmaster: Jürgen Mages jmages@xxxxxx
>>>
>>> To unsubscribe send an empty mail to python-request@xxxxxxxxxxxxx
>>> with 'unsubscribe' in the subject field.
>>>
>>> ============================================================
>>>
>> ============================================================
>>
>> This is the Python Mailinglist
>>
>> //www.freelists.org/list/python
>>
>> Listmaster: Jürgen Mages jmages@xxxxxx
>>
>> To unsubscribe send an empty mail to
>> python-request@xxxxxxxxxxxxx
>> with 'unsubscribe' in the subject field.
>>
>> ============================================================
>>
>
>
> ============================================================
>
> This is the Python Mailinglist
>
> //www.freelists.org/list/python
>
> Listmaster: Jürgen Mages jmages@xxxxxx
>
> To unsubscribe send an empty mail to
> python-request@xxxxxxxxxxxxx
> with 'unsubscribe' in the subject field.
>
> ============================================================
>
>
Other related posts:
