The Signal is fast, it’s for flat out speed.
It pedals like an XC bike, descends like an enduro bike, and captures the rawness of riding a hardtail on fast, flowy singletrack. Stand up, sprint, and ride it hard on groomed descents at Llandegla and Glentress or take it to the big mountains and get loose.
At a glance
- Fast and aggressive titanium 29er hardtail trail bike
- Frame: Signal Ti aeronautical grade titanium frame, custom options available.
- Fork: Cane Creek Helm MK2 Air / 29 / 130mm
- Brakes: SRAM Guide R
- Groupset: SRAM GX Eagle, 12 speed, 10-50
- Rims: Sonder Alpha 29 / XD
- Clearance for up to 2.6" tyres
That low BB and long wheelbase gives a planted and stable feel through the corners and on high speed descents, the low stack height leaves you with less of that ‘tall’ 29er feeling – you’ll feel like you’re in the bike, not on the bike.
Big wheels roll faster. The 29 in wheels can be paired with 2.2 to 2.6ins tyres with clearance for winter conditions.
The titanium Signal frame is stiff, light and durable. 3Al 2.5V Aeronautical grade titanium tubing softens trail buzz and provides the engaging and lively feel that only Titanium can.
2.6” tyre clearance
Bucketloads of clearance for 2.6” tyres gives you the benefits of higher volume tyres without getting clogged up in UK conditions.
Aggressive trail geometry
Neil has designed the Signal Ti to suit his aggressive riding style. A low bottom bracket makes it corner like its on rails, a spacious reach gives you room to move around on the bike, and the 66/74 head and seat angles give you the confidence to bomb the descents and while still being able to climb like a mountain goat.
Guided internal cable routing
Guided internally routed cables for a clean look and silent ride.
Nothing looks quite so good as the famously resilient and durable titanium. Signal Ti’s aeronautical grade titanium tubing absorbs shock to soften the ride without any loss to feel or speed.
We can customise any aspect of our Ti bikes. Come to us with what you want and Neil will make it happen.
|Build||Signal Ti GX Eagle|
|Frame:||Sonder Signal Frame|
|Fork:||Cane Creek Helm MK2 Air / 29 / 130mm|
|Headset:||FSA Orbit C-40-ACB Headset / 7.8mm Spacer|
|Brake Front:||SRAM Guide R / 950mm|
|Brake Rear:||SRAM Guide R / 1800mm|
|Rotor Front:||Avid Centreline Rotor / 180mm|
|Rotor Rear:||Avid Centreline Rotor / 160mm|
|Rear Mech:||SRAM GX Eagle Rear Derailleur / 12 / Long|
|Rear Shifter:||SRAM GX Eagle Trigger Shifter|
|Chainset:||SRAM GX Eagle Crankset DUB / 170mm / 32|
|Bottom Bracket:||SRAM Bottom Bracket / DUB|
|Chain:||SRAM GX Eagle Chain / 120 Links|
|Cassette:||SRAM XG1275 Eagle Cassette / 12 / 10-50|
|Stem:||Love Mud Piskie Stem / 31.8mm / 35mm|
|Seatpost:||RockShox Reverb / 125mm Drop / 31.6 x 390mm|
|Saddle:||Sonder Abode / Black|
|Tape/Grips:||Sonder Clutch / Black|
|Handlebar:||Sonder Aspect Riser|
|Wheels:||Sonder Alpha 29 / XD|
|Front Tyre:||WTB Vigilante / Light High Grip / 29 / 2.5|
|Rear Tyre:||WTB Trail Boss / Tough Fast Rolling / 29 / 2.4|
|Tubes:||WTB Inner Tube / 29 / 1.9-2.3|
|Frame:||S: 1.97 kg; M: 2.0 kg; L: 2.1 kg; XL: 2.14 kg|
|Built:||S: 12.4 kg; M: 12.65 kg; L: 13.8 kg; XL: 13.9 kg|
|Pedals not included with full builds|
SizingIt is important to get the right size bike, if the bike fits it will be faster, more comfortable, and easier to handle. You can also take into consideration the standover height to ensure you pick a bike that will be a good fit. If you measure your inside leg and ensure there is a minimum of an inch from the toptube to your crotch this will give you enough seatpost adjustment to find your optimum saddle height. Generally we recommend:
- Riders between 5ft 2in and 5ft 7in
- Riders between 5ft 6in and 5ft 10in
- Riders between 5ft 9in and 6ft 2in
- Riders of 6ft 2in +
|ST - Seat tube||400||425||465||485|
|ETT - Effective Top Tube||585||606||634||664|
|HT - Head tube||100||105||115||125|
|HA - Head angle||66||66||66||66|
|SA - Seat tube angle||74||74||74||74|
|CS - Chainstay||425||425||430||435|
|BB - BB drop||65||65||65||65|
|FO - Fork offset||42/51||42/51||42/51||42/51|
|WB - Wheelbase||1127||1149||1183||1220|
|SO - Standover||730||738||760||772|
|RE - Reach||412.5||432.5||457.5||485|
|SK - Stack||601||606||615||624|
|Weight: S: 1.97kg; M: 2.0kg; L: 2.1kg; XL: 2.14kg|
|3Al/2.5V Aeronautical Grade Hand Welded Titanium Frame|
|148 mm boost thru axle standard|
|Clearance for 2.6” tyres|
|IS42.IS52 headset to give low stack height|
|73 mm BB shell|
|Internal, fully guided cable routing|
|Stealth dropper routing|
|31.6 mm seatpost diameter, 34.9 mm clamp|
|Optimised for 130 mm travel suspension fork (42 or 51 mm offset)|
Author: Neil Cottom
It is possibly the best all-round trail hardtail that I've ever ridden, I wanted to be out riding on it all the time - that is the mark of a good mountain bike.
Author: Andi Sykes
You know that rock garden that you’ll happily hop into on your full bounce bike? Well, the Sonder will do it too, only you’ll probably lift the front end higher, get airborne further and completely clear the whole lot...