- News
- Reviews
- Bikes
- Accessories
- Accessories - misc
- Computer mounts
- Bags
- Bar ends
- Bike bags & cases
- Bottle cages
- Bottles
- Cameras
- Car racks
- Child seats
- Computers
- Glasses
- GPS units
- Helmets
- Lights - front
- Lights - rear
- Lights - sets
- Locks
- Mirrors
- Mudguards
- Racks
- Pumps & CO2 inflators
- Puncture kits
- Reflectives
- Smart watches
- Stands and racks
- Trailers
- Clothing
- Components
- Bar tape & grips
- Bottom brackets
- Brake & gear cables
- Brake & STI levers
- Brake pads & spares
- Brakes
- Cassettes & freewheels
- Chains
- Chainsets & chainrings
- Derailleurs - front
- Derailleurs - rear
- Forks
- Gear levers & shifters
- Groupsets
- Handlebars & extensions
- Headsets
- Hubs
- Inner tubes
- Pedals
- Quick releases & skewers
- Saddles
- Seatposts
- Stems
- Wheels
- Tyres
- Health, fitness and nutrition
- Tools and workshop
- Miscellaneous
- Cross country mountain bikes
- Tubeless valves
- Buyers Guides
- Features
- Forum
- Recommends
- Podcast
forum
Selle Italia SLR Kit Carbonio Flow Saddle not fitting post
Hi Guys.....I recently purchased a rather nice Selle Italia SLR Kit Carbonio Flow Saddle and I'm pulling my hair out trying to fit it correctly to my Trek 2.3 Bontrager seat post....the existing clamps are not gripping the carbon rails correctly (7mm round) and look like, if tightened, they would crush the rails. On looking at a few youtube vids there was one that said this seat must be held by upper and lower clamps??.....well the Bontrager is a 1 bolt seat post, so, on the advice of a well known retailer w.gg.e i was advised that the 'Ritchey Seatpost Clamp' (for 7mm round carbon rails) would fit the post and seat....spooky...it doesn't!...the clamps don't 'marry' up correctly with the Bontrager post clamps and the bolt supplied from Ritchey with the new outer clamps is at least 10mm to short. I suspect this clamp is only for the overpriced (imho) Ritchey seat post...so how do i fit this seat, if possible, to the Bontrager post?....if its not possible can anyone suggest a good seat post to use? 
If you're new please join in and if you have questions pop them below and the forum regulars will answer as best we can.
Latest Forum Topics
Latest Comments
- Rendel Harris 10 min 42 sec ago
Not really Blaupunkt though, sadly: the company was liquidated in 2016 following bankruptcy. It's just a trademark now that's licensed to various...
- Rendel Harris 1 hour 18 min ago
There's a programme on Radio 4 today at 13.30 entitled "Road Wars: Cycling in Paris". This is part of the text from BBC Sounds describing the...
- whosatthewheel 1 hour 18 min ago
He won't be "jailed" for life as it will not be a "whole life" sentence. He's 22 now, so may be out as early as when he is 37 as the minimum "jail"...
- jamesha100 2 hours 1 min ago
I got the same response when reporting a pickup parked on white zig zags blocking the sight line for a pedestrian crossing. Zero chance of the...
- BigSigh 10 hours 36 min ago
I am absolutely certain that it's not fair for trans-identifying males who went through male puberty to compete in female sports... and that should...
- chrisonabike 11 hours 50 min ago
Nothing to do with cycling, and currently unclear as to what exactly happened. But a child is dead, a tram line isn't running services and ...
- Destroyer666 11 hours 4 min ago
Sidelining the point here a little bit, but I was just looking at a Rapha video about Lachlan Morton's latest incredible venture of riding 648km in...
- wtjs 14 hours 42 min ago
Or, you can just look at them - it's pretty obvious when they're not going to work with a new chain. Then you can try them with old lengthened...
- NeilC575 14 hours 45 min ago
I bought 5 screw in storage hooks from local d.i.y store for £10. Does the same job 🤷♂️
Add new comment
3 comments
all my carbon railed saddles have oval rails !
btw ... you won't go far wrong with a thompson post
Hi....problem resolved hopefully.....got a Thomson Elite Layback Seatpost and it fits the seat fine. Clamps top and bottom.....Doesn't help when the seat is advertised has having 7mm round carbon rails but in fact they are oval....7mm when measured in the horizontal plane, but 7.88mm in the vertical plane......Time will tell
Does not fit carbon rails are designed to be clamped top to bottom not from the side.
You can use bontragers big ears kit but if the rails crack its your own fault!