BHPC Forum Homepage
Forum Home Forum Home > Public: Open to anyone > For Sale
  New Posts New Posts RSS Feed - Challenge Seiran (USS) blue £650
  FAQ FAQ  Forum Search   Register Register  Login Login

Starting a new topic? Please try and put it in a relevant forum (Riding, Building, etc) but if you're not sure it's better to post in any forum than not to post at all.

Challenge Seiran (USS) blue £650
 Post Reply Post Reply
Author
Message
  Topic Search Topic Search  Topic Options Topic Options
guy_yeates View Drop Down
Visitor (new)
Visitor (new)
Avatar

Joined: 11 January 2025
Location: Oxfordshire
Status: Offline
Points: 7 		Post Options Post Options   Thanks (0) Thanks(0)   Quote guy_yeates Quote  Post ReplyReply Direct Link To This Post Topic: Challenge Seiran (USS) blue £650
    Posted: 09 March 2025 at 4:44pm
Challenge Seiran (USS, Blue)

Owner is 170cm tall and the bike uses a medium seat with 67cm between the front of seat to bottom bracket. The bike has an extra 8cm of extension available.  Spare parts for the under-seat chain guide included (see attached zip file of images).

Wanting £650

Ideally come and collect. (South Oxfordshire)


Full set of images here (hopefully)...

Other specs.:
  • Shimano Deore XT hubs, 27 Gears.
  • Shimano Tiagra 165mm cranks. 
  • UnAir Sa Suntour air suspension
  • TRP disk brakes
  • Marathon Plus 40-507 tyres
Guy Yeates
Owned & ridden:
Haluzak 'Horizon'
Challenge 'Seiran 26'
Schlitter 'Encore'
Back to Top
Raptobitten View Drop Down
Visitor (moderated)
Visitor (moderated)
Avatar

Joined: 29 September 2022
Location: Hampshire
Status: Offline
Points: 3 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Raptobitten Quote  Post ReplyReply Direct Link To This Post Posted: 14 March 2025 at 7:18pm
Guy,
Sieran looks fantastic! I can do a swapsie for a well-specced (though in need of TLC) Nazca Fuego. I bought it for £1,200. I’d get it serviced and a new rear tyre before bringing it to you.

If that’s not of interest I’d want to sell the Nazca first before buying a replacement ‘bent.

Could you comment on:
- weight: is it light? OK on hills?
- speed: is it fast, say, similar to the Challenge Fujin? I recall Challenge making a big fuss about the Sieran before they, um, shut up shop.
- if you know about the Nazca, would you say the Sieran is similar or faster?


As for the Nazca
- it’s very fast on the flat - easily outpaces any roadie on his carbon thingy.
- not great uphill (heavy)
- a comfortable ride. I like it a lot. I just want to try something different and faster uphill (I’m moving to hilly Dorset).

All the best
Richard
Richardl@activeplanning.co.uk
Back to Top
guy_yeates View Drop Down
Visitor (new)
Visitor (new)
Avatar

Joined: 11 January 2025
Location: Oxfordshire
Status: Offline
Points: 7 		Post Options Post Options   Thanks (0) Thanks(0)   Quote guy_yeates Quote  Post ReplyReply Direct Link To This Post Posted: 15 March 2025 at 10:53am
Hi Richard, 

I'm actually exiting the recumbent scene having been riding them since 1996 but got back onto up-wrongs 4 years ago so I can't do a swap. I used the Challenge for commuting but did use it for CTC rides where hills were involved and yes you can ride up a 10% (average) if the legs are on for a 10% hill it's aluminium frame but not the heaviest of bikes at 17.8 Kg. It felt similar to a Hurricane but I think wheel size is a factor as to how fast it feels. If you can swap over to above seat steering the improvement in aerodynamics may get it close to an aluminium Fujian. I swapped out the spring suspension for gas and that improved the weight by >1Kg.

Guy  
(I'll repeat this in a direct email)
Guy Yeates
Owned & ridden:
Haluzak 'Horizon'
Challenge 'Seiran 26'
Schlitter 'Encore'
Back to Top
AndyW View Drop Down
Visitor (new)
Visitor (new)
Avatar

Joined: 19 June 2025
Location: Oxon
Status: Offline
Points: 7 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AndyW Quote  Post ReplyReply Direct Link To This Post Posted: 24 June 2025 at 7:11am
Hi Guy,

Is your Seiran still for sale?

AndyW
Back to Top
guy_yeates View Drop Down
Visitor (new)
Visitor (new)
Avatar

Joined: 11 January 2025
Location: Oxfordshire
Status: Offline
Points: 7 		Post Options Post Options   Thanks (0) Thanks(0)   Quote guy_yeates Quote  Post ReplyReply Direct Link To This Post Posted: 24 June 2025 at 12:12pm
Hi Andy,

yes indeed it is. 

I'm based on South Oxfordshire (Didcot).

Guy




Edited by guy_yeates - 24 June 2025 at 12:13pm
Guy Yeates
Owned & ridden:
Haluzak 'Horizon'
Challenge 'Seiran 26'
Schlitter 'Encore'
Back to Top
AndyW View Drop Down
Visitor (new)
Visitor (new)
Avatar

Joined: 19 June 2025
Location: Oxon
Status: Offline
Points: 7 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AndyW Quote  Post ReplyReply Direct Link To This Post Posted: 24 June 2025 at 3:24pm
Hi Guy,

I'm in Abingdon. Could I come and have a look? I could do this afternoon / evening if that suits you.

Andy
Back to Top
guy_yeates View Drop Down
Visitor (new)
Visitor (new)
Avatar

Joined: 11 January 2025
Location: Oxfordshire
Status: Offline
Points: 7 		Post Options Post Options   Thanks (0) Thanks(0)   Quote guy_yeates Quote  Post ReplyReply Direct Link To This Post Posted: 24 June 2025 at 9:45pm
Hi Andy,

sorry I  missed you email. I'm in from 5:30 pm all week and I'm around all weekend.
I'll send you my contact details.
Guy
Guy Yeates
Owned & ridden:
Haluzak 'Horizon'
Challenge 'Seiran 26'
Schlitter 'Encore'
Back to Top
guy_yeates View Drop Down
Visitor (new)
Visitor (new)
Avatar

Joined: 11 January 2025
Location: Oxfordshire
Status: Offline
Points: 7 		Post Options Post Options   Thanks (0) Thanks(0)   Quote guy_yeates Quote  Post ReplyReply Direct Link To This Post Posted: 25 June 2025 at 9:53pm
now sold.
Guy Yeates
Owned & ridden:
Haluzak 'Horizon'
Challenge 'Seiran 26'
Schlitter 'Encore'
Back to Top
 Post Reply Post Reply

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.07
Copyright ©2001-2024 Web Wiz Ltd.