On 12/23/2015 07:32 PM, John Hawrylak wrote:
A relaxed rear geometry seems 1 major feature of all Rivendells
(except the Roadeo), i.e s*lacker Seat Tube Angles (STA)are used
compared to other frames*, whether large or small builder. The STA
angles of the small to medium frames vary from 71.5 deg (Sam, Joe A,
San Macro) to 72.5 deg (AHH, Atlantis, Ram) which are less than:
* Small 27"/700C frames which typically have steeper STA, 73 to 74
deg, to avoid toe clip overlap. The exception being a long top
tube, requiring shorter stems to maintain reach within limits
* Larger frames even are less than 73 deg, a typical British STA.
The slacker STA puts you further back, 6 to 18mm, depending on the STA
compared to 73deg STA.
only if you ignore the fact that you can slide the saddle back and forth
within the range allowed by the seat rails
My questions to the group
1. Is the relaxed rear geometry something you can feel when compared
to other frames??
2. Do you see it as a positive??
STA is one component of saddle position. Seat rail length and seat post
setback are two others. The big deal with Riv STA is that the most
common saddles used on those bikes, Brooks B.17s have very short rails,
and if you like to have the saddle fairly far back it's hard to get
there with most seat posts unless you have a slack STA due to
insufficient seat post setback to make it happen. You really don't
"feel" the affect of STA other than in your ability to get the saddle
where you want it, and if you can that's a distinct "positive".
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