New bike day - not enough seatpost?

[Hugo Stiglitz]

Seatpost extension - frame too big? Stand over seems fine, I'd probably go from 120 to 110mm stem though in the future.

Edited by Hugo Stiglitz on Saturday 2nd March 09:56

[andyeds1234]

I’m guessing you have a long torso, in relation to your legs? If so, I’m the same, but I prefer to have the seat further back on the rails, and a longer stem, rather than a larger frame.
It’s all about how it feels for you, but it does look like you could size down.

[dave123456]

Handlebars need rotating down. I’d try a longer saddle too.

[Hugo Stiglitz]

andyeds1234 said:

I’m guessing you have a long torso, in relation to your legs? If so, I’m the same, but I prefer to have the seat further back on the rails, and a longer stem, rather than a larger frame.
It’s all about how it feels for you, but it does look like you could size down.

I'm 187cm with 32ish inside. What I don't like is flopping over the ends - when climbing out of the saddle I don't like being that far over the front

I could lift the saddle up slightly by 2cm say and I'll try a long saddle too

[DickP]

If you have never had a bike fit it's well worth getting done properly, as it will then give you a guide for what size bikes will fit you. Stand over height I think means little these days because of frame geometry. The distance that's important is between the saddle and bottom bracket, and how far forward/backward your hips and knees are in relation to the pedals. Reach is important to not be too long too, can always increase stem length a little but shortening the stem can have negative impact on stability and handling.

I have similar leg measurement to you and am 5 foot 10, riding a Synapse 54 (medium basically) with 165mm cranks and stock bars and stem (110mm I think without checking).

Edited by DickP on Saturday 2nd March 12:46

Edited by DickP on Saturday 2nd March 12:47

[irc]

Short of a professional bike fit there are various online guides. They almost, if not all, agree you start by setting the saddle position. Especially height. Thereafter look at bars. If the saddle to bar distance is too great it is covered by changing the stem not moving the saddle back and forward.

https://www.britishcycling.org.uk/knowledge/bike-k...

Edited by irc on Sunday 3rd March 08:50

Edited by irc on Sunday 3rd March 08:53

[Hugo Stiglitz]

irc said:

Short of a professional bike fit there are various online guides. They almost, if not all, agree you start by setting the saddle position. Especially height. Thereafter look at bars. If the saddle to bar distance is too great it is covered by changing the stem not moving the saddle back and forward.

https://www.britishcycling.org.uk/knowledge/bike-k...

Edited by irc on Sunday 3rd March 08:50

Edited by irc on Sunday 3rd March 08:53

That link is interesting. I've always gone with the ball of the foot with leg almost straight on the downswing to set the saddle height before. I'll try the heel barely brushing the pedal on the downswing/stretch instead..

Ta.

[irc]

Hugo Stiglitz said:

That link is interesting. I've always gone with the ball of the foot with leg almost straight on the downswing to set the saddle height before. I'll try the heel barely brushing the pedal on the downswing/stretch instead..

Ta.

I think ball of the foot is almost certainly wrong. The idea is that your leg is almost but not quite fully extended at the bottom of the pedal revolution. The other thing to watch is ensure your hips are level and not leaning to either side while getting the heel on the pedal.

PS - If you have an existing bike that is a comfortable fit that works for you then the obvious thing is copy it over. Measure saddle height above bottom bracket axle and match. Then match the bar height in relation to saddle. horizontal distance from saddle nose to bars.